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Finding the Fourth Proportional to 10,202.59, 15,304.41 and 2,806.90

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Solution

The fourth proportional to 10,202.59, 15,304.41 and 2,806.90 is: 4,210.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,202.59 : 15,304.41 = 2,806.90 : x
  2. Step 2: Convert to fraction form
    10,202.59/15,304.41 = 2,806.90/x
  3. Step 3: Cross multiply
    10,202.59x = 15,304.41 × 2,806.90
  4. Step 4: Simplify right side
    10,202.59x = 42,957,948.43
  5. Step 5: Solve for x
    x = 42,957,948.43/10,202.59
  6. Step 6: Final answer
    x = 4,210.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.