Home / 2,557.46-3,831.26-2,141.66

Finding the Fourth Proportional to 2,557.46, 3,831.26 and 2,141.66

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Solution

The fourth proportional to 2,557.46, 3,831.26 and 2,141.66 is: 3,208.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.46 : 3,831.26 = 2,141.66 : x
  2. Step 2: Convert to fraction form
    2,557.46/3,831.26 = 2,141.66/x
  3. Step 3: Cross multiply
    2,557.46x = 3,831.26 × 2,141.66
  4. Step 4: Simplify right side
    2,557.46x = 8,205,226.43
  5. Step 5: Solve for x
    x = 8,205,226.43/2,557.46
  6. Step 6: Final answer
    x = 3,208.36

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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.