Home / 5,418.88-8,131.35-5,377.57

Finding the Fourth Proportional to 5,418.88, 8,131.35 and 5,377.57

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Solution

The fourth proportional to 5,418.88, 8,131.35 and 5,377.57 is: 8,069.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.88 : 8,131.35 = 5,377.57 : x
  2. Step 2: Convert to fraction form
    5,418.88/8,131.35 = 5,377.57/x
  3. Step 3: Cross multiply
    5,418.88x = 8,131.35 × 5,377.57
  4. Step 4: Simplify right side
    5,418.88x = 43,726,863.16
  5. Step 5: Solve for x
    x = 43,726,863.16/5,418.88
  6. Step 6: Final answer
    x = 8,069.36

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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.