Home / 1,294.24-1,939.96-472.27

Finding the Fourth Proportional to 1,294.24, 1,939.96 and 472.27

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Solution

The fourth proportional to 1,294.24, 1,939.96 and 472.27 is: 707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.24 : 1,939.96 = 472.27 : x
  2. Step 2: Convert to fraction form
    1,294.24/1,939.96 = 472.27/x
  3. Step 3: Cross multiply
    1,294.24x = 1,939.96 × 472.27
  4. Step 4: Simplify right side
    1,294.24x = 916,184.91
  5. Step 5: Solve for x
    x = 916,184.91/1,294.24
  6. Step 6: Final answer
    x = 707.89

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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.