Home / 8,385.20-12,577.80-2,542.10

Finding the Fourth Proportional to 8,385.20, 12,577.80 and 2,542.10

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Solution

The fourth proportional to 8,385.20, 12,577.80 and 2,542.10 is: 3,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.20 : 12,577.80 = 2,542.10 : x
  2. Step 2: Convert to fraction form
    8,385.20/12,577.80 = 2,542.10/x
  3. Step 3: Cross multiply
    8,385.20x = 12,577.80 × 2,542.10
  4. Step 4: Simplify right side
    8,385.20x = 31,974,025.38
  5. Step 5: Solve for x
    x = 31,974,025.38/8,385.20
  6. Step 6: Final answer
    x = 3,813.15

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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.