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Finding the Fourth Proportional to 885.53, 1,219.24 and 752.47

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Solution

The fourth proportional to 885.53, 1,219.24 and 752.47 is: 1,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.53 : 1,219.24 = 752.47 : x
  2. Step 2: Convert to fraction form
    885.53/1,219.24 = 752.47/x
  3. Step 3: Cross multiply
    885.53x = 1,219.24 × 752.47
  4. Step 4: Simplify right side
    885.53x = 917,441.52
  5. Step 5: Solve for x
    x = 917,441.52/885.53
  6. Step 6: Final answer
    x = 1,036.04

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1.5x scale

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.