Home / 2,831.00-4,217.79-2,691.57

Finding the Fourth Proportional to 2,831.00, 4,217.79 and 2,691.57

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Solution

The fourth proportional to 2,831.00, 4,217.79 and 2,691.57 is: 4,010.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.00 : 4,217.79 = 2,691.57 : x
  2. Step 2: Convert to fraction form
    2,831.00/4,217.79 = 2,691.57/x
  3. Step 3: Cross multiply
    2,831.00x = 4,217.79 × 2,691.57
  4. Step 4: Simplify right side
    2,831.00x = 11,352,502.94
  5. Step 5: Solve for x
    x = 11,352,502.94/2,831.00
  6. Step 6: Final answer
    x = 4,010.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.