Home / 3,713.97-5,125.08-2,120.56

Finding the Fourth Proportional to 3,713.97, 5,125.08 and 2,120.56

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Solution

The fourth proportional to 3,713.97, 5,125.08 and 2,120.56 is: 2,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.97 : 5,125.08 = 2,120.56 : x
  2. Step 2: Convert to fraction form
    3,713.97/5,125.08 = 2,120.56/x
  3. Step 3: Cross multiply
    3,713.97x = 5,125.08 × 2,120.56
  4. Step 4: Simplify right side
    3,713.97x = 10,868,014.02
  5. Step 5: Solve for x
    x = 10,868,014.02/3,713.97
  6. Step 6: Final answer
    x = 2,926.25

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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.