Home / 3,431.43-5,147.15-966.30

Finding the Fourth Proportional to 3,431.43, 5,147.15 and 966.30

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Solution

The fourth proportional to 3,431.43, 5,147.15 and 966.30 is: 1,449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.43 : 5,147.15 = 966.30 : x
  2. Step 2: Convert to fraction form
    3,431.43/5,147.15 = 966.30/x
  3. Step 3: Cross multiply
    3,431.43x = 5,147.15 × 966.30
  4. Step 4: Simplify right side
    3,431.43x = 4,973,666.91
  5. Step 5: Solve for x
    x = 4,973,666.91/3,431.43
  6. Step 6: Final answer
    x = 1,449.44

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.