Home / 3,917.54-5,407.17-2,660.69

Finding the Fourth Proportional to 3,917.54, 5,407.17 and 2,660.69

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Solution

The fourth proportional to 3,917.54, 5,407.17 and 2,660.69 is: 3,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.54 : 5,407.17 = 2,660.69 : x
  2. Step 2: Convert to fraction form
    3,917.54/5,407.17 = 2,660.69/x
  3. Step 3: Cross multiply
    3,917.54x = 5,407.17 × 2,660.69
  4. Step 4: Simplify right side
    3,917.54x = 14,386,803.15
  5. Step 5: Solve for x
    x = 14,386,803.15/3,917.54
  6. Step 6: Final answer
    x = 3,672.41

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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.