Home / 1,526.60-2,290.55-747.29

Finding the Fourth Proportional to 1,526.60, 2,290.55 and 747.29

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Solution

The fourth proportional to 1,526.60, 2,290.55 and 747.29 is: 1,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.60 : 2,290.55 = 747.29 : x
  2. Step 2: Convert to fraction form
    1,526.60/2,290.55 = 747.29/x
  3. Step 3: Cross multiply
    1,526.60x = 2,290.55 × 747.29
  4. Step 4: Simplify right side
    1,526.60x = 1,711,689.92
  5. Step 5: Solve for x
    x = 1,711,689.92/1,526.60
  6. Step 6: Final answer
    x = 1,121.25

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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.