Home / 6,218.55-8,581.38-3,385.88

Finding the Fourth Proportional to 6,218.55, 8,581.38 and 3,385.88

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Solution

The fourth proportional to 6,218.55, 8,581.38 and 3,385.88 is: 4,672.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218.55 : 8,581.38 = 3,385.88 : x
  2. Step 2: Convert to fraction form
    6,218.55/8,581.38 = 3,385.88/x
  3. Step 3: Cross multiply
    6,218.55x = 8,581.38 × 3,385.88
  4. Step 4: Simplify right side
    6,218.55x = 29,055,480.01
  5. Step 5: Solve for x
    x = 29,055,480.01/6,218.55
  6. Step 6: Final answer
    x = 4,672.39

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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.