Home / 6,272.70-8,656.17-3,478.20

Finding the Fourth Proportional to 6,272.70, 8,656.17 and 3,478.20

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Solution

The fourth proportional to 6,272.70, 8,656.17 and 3,478.20 is: 4,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,272.70 : 8,656.17 = 3,478.20 : x
  2. Step 2: Convert to fraction form
    6,272.70/8,656.17 = 3,478.20/x
  3. Step 3: Cross multiply
    6,272.70x = 8,656.17 × 3,478.20
  4. Step 4: Simplify right side
    6,272.70x = 30,107,890.49
  5. Step 5: Solve for x
    x = 30,107,890.49/6,272.70
  6. Step 6: Final answer
    x = 4,799.83

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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.