Home / 3,811.07-5,712.71-2,578.61

Finding the Fourth Proportional to 3,811.07, 5,712.71 and 2,578.61

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Solution

The fourth proportional to 3,811.07, 5,712.71 and 2,578.61 is: 3,865.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.07 : 5,712.71 = 2,578.61 : x
  2. Step 2: Convert to fraction form
    3,811.07/5,712.71 = 2,578.61/x
  3. Step 3: Cross multiply
    3,811.07x = 5,712.71 × 2,578.61
  4. Step 4: Simplify right side
    3,811.07x = 14,730,831.10
  5. Step 5: Solve for x
    x = 14,730,831.10/3,811.07
  6. Step 6: Final answer
    x = 3,865.28

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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.