Home / 1,132.20-1,697.45-576.99

Finding the Fourth Proportional to 1,132.20, 1,697.45 and 576.99

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Solution

The fourth proportional to 1,132.20, 1,697.45 and 576.99 is: 865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.20 : 1,697.45 = 576.99 : x
  2. Step 2: Convert to fraction form
    1,132.20/1,697.45 = 576.99/x
  3. Step 3: Cross multiply
    1,132.20x = 1,697.45 × 576.99
  4. Step 4: Simplify right side
    1,132.20x = 979,408.79
  5. Step 5: Solve for x
    x = 979,408.79/1,132.20
  6. Step 6: Final answer
    x = 865.05

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Double scale
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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.