Home / 2,554.83-3,831.75-911.43

Finding the Fourth Proportional to 2,554.83, 3,831.75 and 911.43

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Solution

The fourth proportional to 2,554.83, 3,831.75 and 911.43 is: 1,366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.83 : 3,831.75 = 911.43 : x
  2. Step 2: Convert to fraction form
    2,554.83/3,831.75 = 911.43/x
  3. Step 3: Cross multiply
    2,554.83x = 3,831.75 × 911.43
  4. Step 4: Simplify right side
    2,554.83x = 3,492,371.90
  5. Step 5: Solve for x
    x = 3,492,371.90/2,554.83
  6. Step 6: Final answer
    x = 1,366.97

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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.