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Finding the Fourth Proportional to 1,132.75, 1,563.27 and 635.42

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Solution

The fourth proportional to 1,132.75, 1,563.27 and 635.42 is: 876.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.75 : 1,563.27 = 635.42 : x
  2. Step 2: Convert to fraction form
    1,132.75/1,563.27 = 635.42/x
  3. Step 3: Cross multiply
    1,132.75x = 1,563.27 × 635.42
  4. Step 4: Simplify right side
    1,132.75x = 993,325.76
  5. Step 5: Solve for x
    x = 993,325.76/1,132.75
  6. Step 6: Final answer
    x = 876.91

Related Problems

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Half scale
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Double scale
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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.