Home / 3,234.19-4,851.28-1,385.15

Finding the Fourth Proportional to 3,234.19, 4,851.28 and 1,385.15

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Solution

The fourth proportional to 3,234.19, 4,851.28 and 1,385.15 is: 2,077.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,234.19 : 4,851.28 = 1,385.15 : x
  2. Step 2: Convert to fraction form
    3,234.19/4,851.28 = 1,385.15/x
  3. Step 3: Cross multiply
    3,234.19x = 4,851.28 × 1,385.15
  4. Step 4: Simplify right side
    3,234.19x = 6,719,759.15
  5. Step 5: Solve for x
    x = 6,719,759.15/3,234.19
  6. Step 6: Final answer
    x = 2,077.73

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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.