Home / 5,717.92-7,883.76-3,727.68

Finding the Fourth Proportional to 5,717.92, 7,883.76 and 3,727.68

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Solution

The fourth proportional to 5,717.92, 7,883.76 and 3,727.68 is: 5,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.92 : 7,883.76 = 3,727.68 : x
  2. Step 2: Convert to fraction form
    5,717.92/7,883.76 = 3,727.68/x
  3. Step 3: Cross multiply
    5,717.92x = 7,883.76 × 3,727.68
  4. Step 4: Simplify right side
    5,717.92x = 29,388,134.48
  5. Step 5: Solve for x
    x = 29,388,134.48/5,717.92
  6. Step 6: Final answer
    x = 5,139.65

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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.