Home / 3,713.80-5,125.51-2,141.90

Finding the Fourth Proportional to 3,713.80, 5,125.51 and 2,141.90

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Solution

The fourth proportional to 3,713.80, 5,125.51 and 2,141.90 is: 2,956.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.80 : 5,125.51 = 2,141.90 : x
  2. Step 2: Convert to fraction form
    3,713.80/5,125.51 = 2,141.90/x
  3. Step 3: Cross multiply
    3,713.80x = 5,125.51 × 2,141.90
  4. Step 4: Simplify right side
    3,713.80x = 10,978,329.87
  5. Step 5: Solve for x
    x = 10,978,329.87/3,713.80
  6. Step 6: Final answer
    x = 2,956.09

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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.