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Finding the Fourth Proportional to 1,397.88, 2,097.09 and 532.13

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Solution

The fourth proportional to 1,397.88, 2,097.09 and 532.13 is: 798.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.88 : 2,097.09 = 532.13 : x
  2. Step 2: Convert to fraction form
    1,397.88/2,097.09 = 532.13/x
  3. Step 3: Cross multiply
    1,397.88x = 2,097.09 × 532.13
  4. Step 4: Simplify right side
    1,397.88x = 1,115,914.02
  5. Step 5: Solve for x
    x = 1,115,914.02/1,397.88
  6. Step 6: Final answer
    x = 798.29

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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.