Home / 5,220.76-7,204.62-2,862.82

Finding the Fourth Proportional to 5,220.76, 7,204.62 and 2,862.82

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Solution

The fourth proportional to 5,220.76, 7,204.62 and 2,862.82 is: 3,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.76 : 7,204.62 = 2,862.82 : x
  2. Step 2: Convert to fraction form
    5,220.76/7,204.62 = 2,862.82/x
  3. Step 3: Cross multiply
    5,220.76x = 7,204.62 × 2,862.82
  4. Step 4: Simplify right side
    5,220.76x = 20,625,530.23
  5. Step 5: Solve for x
    x = 20,625,530.23/5,220.76
  6. Step 6: Final answer
    x = 3,950.68

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Half scale
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Double scale
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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.