Home / 2,879.28-3,973.36-1,831.92

Finding the Fourth Proportional to 2,879.28, 3,973.36 and 1,831.92

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Solution

The fourth proportional to 2,879.28, 3,973.36 and 1,831.92 is: 2,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.28 : 3,973.36 = 1,831.92 : x
  2. Step 2: Convert to fraction form
    2,879.28/3,973.36 = 1,831.92/x
  3. Step 3: Cross multiply
    2,879.28x = 3,973.36 × 1,831.92
  4. Step 4: Simplify right side
    2,879.28x = 7,278,877.65
  5. Step 5: Solve for x
    x = 7,278,877.65/2,879.28
  6. Step 6: Final answer
    x = 2,528.02

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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.