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Finding the Fourth Proportional to 941.72, 1,414.20 and 750.56

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Solution

The fourth proportional to 941.72, 1,414.20 and 750.56 is: 1,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.72 : 1,414.20 = 750.56 : x
  2. Step 2: Convert to fraction form
    941.72/1,414.20 = 750.56/x
  3. Step 3: Cross multiply
    941.72x = 1,414.20 × 750.56
  4. Step 4: Simplify right side
    941.72x = 1,061,441.95
  5. Step 5: Solve for x
    x = 1,061,441.95/941.72
  6. Step 6: Final answer
    x = 1,127.13

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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.