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Finding the Fourth Proportional to 1,565.38, 2,348.07 and 469.72

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Solution

The fourth proportional to 1,565.38, 2,348.07 and 469.72 is: 704.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.38 : 2,348.07 = 469.72 : x
  2. Step 2: Convert to fraction form
    1,565.38/2,348.07 = 469.72/x
  3. Step 3: Cross multiply
    1,565.38x = 2,348.07 × 469.72
  4. Step 4: Simplify right side
    1,565.38x = 1,102,935.44
  5. Step 5: Solve for x
    x = 1,102,935.44/1,565.38
  6. Step 6: Final answer
    x = 704.58

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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.