Home / 3,221.13-4,831.72-1,141.15

Finding the Fourth Proportional to 3,221.13, 4,831.72 and 1,141.15

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Solution

The fourth proportional to 3,221.13, 4,831.72 and 1,141.15 is: 1,711.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.13 : 4,831.72 = 1,141.15 : x
  2. Step 2: Convert to fraction form
    3,221.13/4,831.72 = 1,141.15/x
  3. Step 3: Cross multiply
    3,221.13x = 4,831.72 × 1,141.15
  4. Step 4: Simplify right side
    3,221.13x = 5,513,693.12
  5. Step 5: Solve for x
    x = 5,513,693.12/3,221.13
  6. Step 6: Final answer
    x = 1,711.73

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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.