Home / 6,422.10-9,633.15-3,657.30

Finding the Fourth Proportional to 6,422.10, 9,633.15 and 3,657.30

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Solution

The fourth proportional to 6,422.10, 9,633.15 and 3,657.30 is: 5,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.10 : 9,633.15 = 3,657.30 : x
  2. Step 2: Convert to fraction form
    6,422.10/9,633.15 = 3,657.30/x
  3. Step 3: Cross multiply
    6,422.10x = 9,633.15 × 3,657.30
  4. Step 4: Simplify right side
    6,422.10x = 35,231,319.50
  5. Step 5: Solve for x
    x = 35,231,319.50/6,422.10
  6. Step 6: Final answer
    x = 5,485.95

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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.