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Finding the Fourth Proportional to 1,061.95, 1,591.11 and 752.29

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Solution

The fourth proportional to 1,061.95, 1,591.11 and 752.29 is: 1,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.95 : 1,591.11 = 752.29 : x
  2. Step 2: Convert to fraction form
    1,061.95/1,591.11 = 752.29/x
  3. Step 3: Cross multiply
    1,061.95x = 1,591.11 × 752.29
  4. Step 4: Simplify right side
    1,061.95x = 1,196,976.14
  5. Step 5: Solve for x
    x = 1,196,976.14/1,061.95
  6. Step 6: Final answer
    x = 1,127.15

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1.5x scale

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.