Home / 2,915.87-4,023.90-1,589.57

Finding the Fourth Proportional to 2,915.87, 4,023.90 and 1,589.57

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Solution

The fourth proportional to 2,915.87, 4,023.90 and 1,589.57 is: 2,193.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.87 : 4,023.90 = 1,589.57 : x
  2. Step 2: Convert to fraction form
    2,915.87/4,023.90 = 1,589.57/x
  3. Step 3: Cross multiply
    2,915.87x = 4,023.90 × 1,589.57
  4. Step 4: Simplify right side
    2,915.87x = 6,396,292.80
  5. Step 5: Solve for x
    x = 6,396,292.80/2,915.87
  6. Step 6: Final answer
    x = 2,193.61

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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.