Home / 6,331.57-8,738.75-3,679.12

Finding the Fourth Proportional to 6,331.57, 8,738.75 and 3,679.12

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Solution

The fourth proportional to 6,331.57, 8,738.75 and 3,679.12 is: 5,077.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.57 : 8,738.75 = 3,679.12 : x
  2. Step 2: Convert to fraction form
    6,331.57/8,738.75 = 3,679.12/x
  3. Step 3: Cross multiply
    6,331.57x = 8,738.75 × 3,679.12
  4. Step 4: Simplify right side
    6,331.57x = 32,150,930.02
  5. Step 5: Solve for x
    x = 32,150,930.02/6,331.57
  6. Step 6: Final answer
    x = 5,077.88

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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.