Home / 2,554.65-3,831.44-911.30

Finding the Fourth Proportional to 2,554.65, 3,831.44 and 911.30

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Solution

The fourth proportional to 2,554.65, 3,831.44 and 911.30 is: 1,366.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.65 : 3,831.44 = 911.30 : x
  2. Step 2: Convert to fraction form
    2,554.65/3,831.44 = 911.30/x
  3. Step 3: Cross multiply
    2,554.65x = 3,831.44 × 911.30
  4. Step 4: Simplify right side
    2,554.65x = 3,491,567.56
  5. Step 5: Solve for x
    x = 3,491,567.56/2,554.65
  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.