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Finding the Fourth Proportional to 1,341.73, 1,851.68 and 752.31

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Solution

The fourth proportional to 1,341.73, 1,851.68 and 752.31 is: 1,038.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.73 : 1,851.68 = 752.31 : x
  2. Step 2: Convert to fraction form
    1,341.73/1,851.68 = 752.31/x
  3. Step 3: Cross multiply
    1,341.73x = 1,851.68 × 752.31
  4. Step 4: Simplify right side
    1,341.73x = 1,393,037.38
  5. Step 5: Solve for x
    x = 1,393,037.38/1,341.73
  6. Step 6: Final answer
    x = 1,038.24

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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.