Home / 1,255.48-1,882.20-1,084.18

Finding the Fourth Proportional to 1,255.48, 1,882.20 and 1,084.18

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Solution

The fourth proportional to 1,255.48, 1,882.20 and 1,084.18 is: 1,625.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.48 : 1,882.20 = 1,084.18 : x
  2. Step 2: Convert to fraction form
    1,255.48/1,882.20 = 1,084.18/x
  3. Step 3: Cross multiply
    1,255.48x = 1,882.20 × 1,084.18
  4. Step 4: Simplify right side
    1,255.48x = 2,040,643.60
  5. Step 5: Solve for x
    x = 2,040,643.60/1,255.48
  6. Step 6: Final answer
    x = 1,625.39

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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.