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Finding the Fourth Proportional to 885.24, 1,327.88 and 756.13

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Solution

The fourth proportional to 885.24, 1,327.88 and 756.13 is: 1,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.24 : 1,327.88 = 756.13 : x
  2. Step 2: Convert to fraction form
    885.24/1,327.88 = 756.13/x
  3. Step 3: Cross multiply
    885.24x = 1,327.88 × 756.13
  4. Step 4: Simplify right side
    885.24x = 1,004,049.90
  5. Step 5: Solve for x
    x = 1,004,049.90/885.24
  6. Step 6: Final answer
    x = 1,134.21

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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.