Home / 3,338.29-4,608.71-2,220.76

Finding the Fourth Proportional to 3,338.29, 4,608.71 and 2,220.76

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Solution

The fourth proportional to 3,338.29, 4,608.71 and 2,220.76 is: 3,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.29 : 4,608.71 = 2,220.76 : x
  2. Step 2: Convert to fraction form
    3,338.29/4,608.71 = 2,220.76/x
  3. Step 3: Cross multiply
    3,338.29x = 4,608.71 × 2,220.76
  4. Step 4: Simplify right side
    3,338.29x = 10,234,838.82
  5. Step 5: Solve for x
    x = 10,234,838.82/3,338.29
  6. Step 6: Final answer
    x = 3,065.89

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Find fourth proportional to 1,669.15, 2,304.36 and 1,110.38
Half scale
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Double scale
Find fourth proportional to 3,339.29, 4,610.09 and 2,221.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.