Home / 2,554.55-3,831.84-911.16

Finding the Fourth Proportional to 2,554.55, 3,831.84 and 911.16

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Solution

The fourth proportional to 2,554.55, 3,831.84 and 911.16 is: 1,366.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.55 : 3,831.84 = 911.16 : x
  2. Step 2: Convert to fraction form
    2,554.55/3,831.84 = 911.16/x
  3. Step 3: Cross multiply
    2,554.55x = 3,831.84 × 911.16
  4. Step 4: Simplify right side
    2,554.55x = 3,491,419.33
  5. Step 5: Solve for x
    x = 3,491,419.33/2,554.55
  6. Step 6: Final answer
    x = 1,366.75

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1.5x scale

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.