Home / 5,147.27-7,719.97-1,637.65

Finding the Fourth Proportional to 5,147.27, 7,719.97 and 1,637.65

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Solution

The fourth proportional to 5,147.27, 7,719.97 and 1,637.65 is: 2,456.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.27 : 7,719.97 = 1,637.65 : x
  2. Step 2: Convert to fraction form
    5,147.27/7,719.97 = 1,637.65/x
  3. Step 3: Cross multiply
    5,147.27x = 7,719.97 × 1,637.65
  4. Step 4: Simplify right side
    5,147.27x = 12,642,608.87
  5. Step 5: Solve for x
    x = 12,642,608.87/5,147.27
  6. Step 6: Final answer
    x = 2,456.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.