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Finding the Fourth Proportional to 1,397.03, 2,095.85 and 472.52

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Solution

The fourth proportional to 1,397.03, 2,095.85 and 472.52 is: 708.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.03 : 2,095.85 = 472.52 : x
  2. Step 2: Convert to fraction form
    1,397.03/2,095.85 = 472.52/x
  3. Step 3: Cross multiply
    1,397.03x = 2,095.85 × 472.52
  4. Step 4: Simplify right side
    1,397.03x = 990,337.46
  5. Step 5: Solve for x
    x = 990,337.46/1,397.03
  6. Step 6: Final answer
    x = 708.89

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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.