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Finding the Fourth Proportional to 1,244.33, 1,716.55 and 746.86

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Solution

The fourth proportional to 1,244.33, 1,716.55 and 746.86 is: 1,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.33 : 1,716.55 = 746.86 : x
  2. Step 2: Convert to fraction form
    1,244.33/1,716.55 = 746.86/x
  3. Step 3: Cross multiply
    1,244.33x = 1,716.55 × 746.86
  4. Step 4: Simplify right side
    1,244.33x = 1,282,022.53
  5. Step 5: Solve for x
    x = 1,282,022.53/1,244.33
  6. Step 6: Final answer
    x = 1,030.29

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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.