Home / 3,147.49-4,719.68-1,831.69

Finding the Fourth Proportional to 3,147.49, 4,719.68 and 1,831.69

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Solution

The fourth proportional to 3,147.49, 4,719.68 and 1,831.69 is: 2,746.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.49 : 4,719.68 = 1,831.69 : x
  2. Step 2: Convert to fraction form
    3,147.49/4,719.68 = 1,831.69/x
  3. Step 3: Cross multiply
    3,147.49x = 4,719.68 × 1,831.69
  4. Step 4: Simplify right side
    3,147.49x = 8,644,990.66
  5. Step 5: Solve for x
    x = 8,644,990.66/3,147.49
  6. Step 6: Final answer
    x = 2,746.63

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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.