Home / 1,630.38-2,249.86-966.83

Finding the Fourth Proportional to 1,630.38, 2,249.86 and 966.83

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Solution

The fourth proportional to 1,630.38, 2,249.86 and 966.83 is: 1,334.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.38 : 2,249.86 = 966.83 : x
  2. Step 2: Convert to fraction form
    1,630.38/2,249.86 = 966.83/x
  3. Step 3: Cross multiply
    1,630.38x = 2,249.86 × 966.83
  4. Step 4: Simplify right side
    1,630.38x = 2,175,232.14
  5. Step 5: Solve for x
    x = 2,175,232.14/1,630.38
  6. Step 6: Final answer
    x = 1,334.19

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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.