Home / 3,713.70-5,124.92-2,141.80

Finding the Fourth Proportional to 3,713.70, 5,124.92 and 2,141.80

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Solution

The fourth proportional to 3,713.70, 5,124.92 and 2,141.80 is: 2,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.70 : 5,124.92 = 2,141.80 : x
  2. Step 2: Convert to fraction form
    3,713.70/5,124.92 = 2,141.80/x
  3. Step 3: Cross multiply
    3,713.70x = 5,124.92 × 2,141.80
  4. Step 4: Simplify right side
    3,713.70x = 10,976,553.66
  5. Step 5: Solve for x
    x = 10,976,553.66/3,713.70
  6. Step 6: Final answer
    x = 2,955.69

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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.