Home / 3,220.96-4,443.42-2,276.76

Finding the Fourth Proportional to 3,220.96, 4,443.42 and 2,276.76

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Solution

The fourth proportional to 3,220.96, 4,443.42 and 2,276.76 is: 3,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.96 : 4,443.42 = 2,276.76 : x
  2. Step 2: Convert to fraction form
    3,220.96/4,443.42 = 2,276.76/x
  3. Step 3: Cross multiply
    3,220.96x = 4,443.42 × 2,276.76
  4. Step 4: Simplify right side
    3,220.96x = 10,116,600.92
  5. Step 5: Solve for x
    x = 10,116,600.92/3,220.96
  6. Step 6: Final answer
    x = 3,140.87

Related Problems

Find fourth proportional to 1,610.48, 2,221.71 and 1,138.38
Half scale
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Double scale
Find fourth proportional to 3,221.96, 4,444.80 and 2,277.76
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.