Home / 3,121.17-4,677.40-2,424.66

Finding the Fourth Proportional to 3,121.17, 4,677.40 and 2,424.66

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Solution

The fourth proportional to 3,121.17, 4,677.40 and 2,424.66 is: 3,633.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.17 : 4,677.40 = 2,424.66 : x
  2. Step 2: Convert to fraction form
    3,121.17/4,677.40 = 2,424.66/x
  3. Step 3: Cross multiply
    3,121.17x = 4,677.40 × 2,424.66
  4. Step 4: Simplify right side
    3,121.17x = 11,341,104.68
  5. Step 5: Solve for x
    x = 11,341,104.68/3,121.17
  6. Step 6: Final answer
    x = 3,633.61

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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.