Home / 3,717.28-5,129.92-2,038.76

Finding the Fourth Proportional to 3,717.28, 5,129.92 and 2,038.76

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Solution

The fourth proportional to 3,717.28, 5,129.92 and 2,038.76 is: 2,813.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.28 : 5,129.92 = 2,038.76 : x
  2. Step 2: Convert to fraction form
    3,717.28/5,129.92 = 2,038.76/x
  3. Step 3: Cross multiply
    3,717.28x = 5,129.92 × 2,038.76
  4. Step 4: Simplify right side
    3,717.28x = 10,458,675.70
  5. Step 5: Solve for x
    x = 10,458,675.70/3,717.28
  6. Step 6: Final answer
    x = 2,813.53

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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.