Home / 2,776.66-3,831.79-1,517.72

Finding the Fourth Proportional to 2,776.66, 3,831.79 and 1,517.72

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Solution

The fourth proportional to 2,776.66, 3,831.79 and 1,517.72 is: 2,094.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.66 : 3,831.79 = 1,517.72 : x
  2. Step 2: Convert to fraction form
    2,776.66/3,831.79 = 1,517.72/x
  3. Step 3: Cross multiply
    2,776.66x = 3,831.79 × 1,517.72
  4. Step 4: Simplify right side
    2,776.66x = 5,815,557.57
  5. Step 5: Solve for x
    x = 5,815,557.57/2,776.66
  6. Step 6: Final answer
    x = 2,094.44

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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.