Home / 6,431.40-9,647.10-2,732.70

Finding the Fourth Proportional to 6,431.40, 9,647.10 and 2,732.70

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Solution

The fourth proportional to 6,431.40, 9,647.10 and 2,732.70 is: 4,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.40 : 9,647.10 = 2,732.70 : x
  2. Step 2: Convert to fraction form
    6,431.40/9,647.10 = 2,732.70/x
  3. Step 3: Cross multiply
    6,431.40x = 9,647.10 × 2,732.70
  4. Step 4: Simplify right side
    6,431.40x = 26,362,630.17
  5. Step 5: Solve for x
    x = 26,362,630.17/6,431.40
  6. Step 6: Final answer
    x = 4,099.05

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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.