Home / 3,108.60-4,684.14-2,572.80

Finding the Fourth Proportional to 3,108.60, 4,684.14 and 2,572.80

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Solution

The fourth proportional to 3,108.60, 4,684.14 and 2,572.80 is: 3,876.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.60 : 4,684.14 = 2,572.80 : x
  2. Step 2: Convert to fraction form
    3,108.60/4,684.14 = 2,572.80/x
  3. Step 3: Cross multiply
    3,108.60x = 4,684.14 × 2,572.80
  4. Step 4: Simplify right side
    3,108.60x = 12,051,355.39
  5. Step 5: Solve for x
    x = 12,051,355.39/3,108.60
  6. Step 6: Final answer
    x = 3,876.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.