Home / 3,431.23-5,146.85-966.30

Finding the Fourth Proportional to 3,431.23, 5,146.85 and 966.30

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Solution

The fourth proportional to 3,431.23, 5,146.85 and 966.30 is: 1,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.23 : 5,146.85 = 966.30 : x
  2. Step 2: Convert to fraction form
    3,431.23/5,146.85 = 966.30/x
  3. Step 3: Cross multiply
    3,431.23x = 5,146.85 × 966.30
  4. Step 4: Simplify right side
    3,431.23x = 4,973,401.16
  5. Step 5: Solve for x
    x = 4,973,401.16/3,431.23
  6. Step 6: Final answer
    x = 1,449.45

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.