Home / 1,487.05-2,229.91-707.27

Finding the Fourth Proportional to 1,487.05, 2,229.91 and 707.27

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Solution

The fourth proportional to 1,487.05, 2,229.91 and 707.27 is: 1,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.05 : 2,229.91 = 707.27 : x
  2. Step 2: Convert to fraction form
    1,487.05/2,229.91 = 707.27/x
  3. Step 3: Cross multiply
    1,487.05x = 2,229.91 × 707.27
  4. Step 4: Simplify right side
    1,487.05x = 1,577,144.91
  5. Step 5: Solve for x
    x = 1,577,144.91/1,487.05
  6. Step 6: Final answer
    x = 1,060.59

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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.