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Finding the Fourth Proportional to 1,097.39, 1,644.46 and 1,070.22

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Solution

The fourth proportional to 1,097.39, 1,644.46 and 1,070.22 is: 1,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.39 : 1,644.46 = 1,070.22 : x
  2. Step 2: Convert to fraction form
    1,097.39/1,644.46 = 1,070.22/x
  3. Step 3: Cross multiply
    1,097.39x = 1,644.46 × 1,070.22
  4. Step 4: Simplify right side
    1,097.39x = 1,759,937.47
  5. Step 5: Solve for x
    x = 1,759,937.47/1,097.39
  6. Step 6: Final answer
    x = 1,603.74

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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.