Home / 6,215.38-8,577.23-3,420.88

Finding the Fourth Proportional to 6,215.38, 8,577.23 and 3,420.88

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Solution

The fourth proportional to 6,215.38, 8,577.23 and 3,420.88 is: 4,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.38 : 8,577.23 = 3,420.88 : x
  2. Step 2: Convert to fraction form
    6,215.38/8,577.23 = 3,420.88/x
  3. Step 3: Cross multiply
    6,215.38x = 8,577.23 × 3,420.88
  4. Step 4: Simplify right side
    6,215.38x = 29,341,614.57
  5. Step 5: Solve for x
    x = 29,341,614.57/6,215.38
  6. Step 6: Final answer
    x = 4,720.81

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Half scale
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Double scale
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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.