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Finding the Fourth Proportional to 1,349.74, 1,862.60 and 752.24

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Solution

The fourth proportional to 1,349.74, 1,862.60 and 752.24 is: 1,038.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.74 : 1,862.60 = 752.24 : x
  2. Step 2: Convert to fraction form
    1,349.74/1,862.60 = 752.24/x
  3. Step 3: Cross multiply
    1,349.74x = 1,862.60 × 752.24
  4. Step 4: Simplify right side
    1,349.74x = 1,401,114.79
  5. Step 5: Solve for x
    x = 1,401,114.79/1,349.74
  6. Step 6: Final answer
    x = 1,038.06

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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.