Home / 5,589.26-7,716.22-3,915.80

Finding the Fourth Proportional to 5,589.26, 7,716.22 and 3,915.80

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Solution

The fourth proportional to 5,589.26, 7,716.22 and 3,915.80 is: 5,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.26 : 7,716.22 = 3,915.80 : x
  2. Step 2: Convert to fraction form
    5,589.26/7,716.22 = 3,915.80/x
  3. Step 3: Cross multiply
    5,589.26x = 7,716.22 × 3,915.80
  4. Step 4: Simplify right side
    5,589.26x = 30,215,125.91
  5. Step 5: Solve for x
    x = 30,215,125.91/5,589.26
  6. Step 6: Final answer
    x = 5,405.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.