Home / 6,438.24-9,657.36-3,974.04

Finding the Fourth Proportional to 6,438.24, 9,657.36 and 3,974.04

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Solution

The fourth proportional to 6,438.24, 9,657.36 and 3,974.04 is: 5,961.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.24 : 9,657.36 = 3,974.04 : x
  2. Step 2: Convert to fraction form
    6,438.24/9,657.36 = 3,974.04/x
  3. Step 3: Cross multiply
    6,438.24x = 9,657.36 × 3,974.04
  4. Step 4: Simplify right side
    6,438.24x = 38,378,734.93
  5. Step 5: Solve for x
    x = 38,378,734.93/6,438.24
  6. Step 6: Final answer
    x = 5,961.06

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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.