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Finding the Fourth Proportional to 1,244.13, 1,716.12 and 801.51

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Solution

The fourth proportional to 1,244.13, 1,716.12 and 801.51 is: 1,105.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.13 : 1,716.12 = 801.51 : x
  2. Step 2: Convert to fraction form
    1,244.13/1,716.12 = 801.51/x
  3. Step 3: Cross multiply
    1,244.13x = 1,716.12 × 801.51
  4. Step 4: Simplify right side
    1,244.13x = 1,375,487.34
  5. Step 5: Solve for x
    x = 1,375,487.34/1,244.13
  6. Step 6: Final answer
    x = 1,105.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.