Home / 3,713.28-5,125.16-2,315.76

Finding the Fourth Proportional to 3,713.28, 5,125.16 and 2,315.76

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Solution

The fourth proportional to 3,713.28, 5,125.16 and 2,315.76 is: 3,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.28 : 5,125.16 = 2,315.76 : x
  2. Step 2: Convert to fraction form
    3,713.28/5,125.16 = 2,315.76/x
  3. Step 3: Cross multiply
    3,713.28x = 5,125.16 × 2,315.76
  4. Step 4: Simplify right side
    3,713.28x = 11,868,640.52
  5. Step 5: Solve for x
    x = 11,868,640.52/3,713.28
  6. Step 6: Final answer
    x = 3,196.27

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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.