Home / 1,132.85-1,563.35-635.60

Finding the Fourth Proportional to 1,132.85, 1,563.35 and 635.60

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Solution

The fourth proportional to 1,132.85, 1,563.35 and 635.60 is: 877.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.85 : 1,563.35 = 635.60 : x
  2. Step 2: Convert to fraction form
    1,132.85/1,563.35 = 635.60/x
  3. Step 3: Cross multiply
    1,132.85x = 1,563.35 × 635.60
  4. Step 4: Simplify right side
    1,132.85x = 993,654.27
  5. Step 5: Solve for x
    x = 993,654.27/1,132.85
  6. Step 6: Final answer
    x = 877.13

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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.