Home / 2,915.90-4,023.92-1,589.59

Finding the Fourth Proportional to 2,915.90, 4,023.92 and 1,589.59

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Solution

The fourth proportional to 2,915.90, 4,023.92 and 1,589.59 is: 2,193.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.90 : 4,023.92 = 1,589.59 : x
  2. Step 2: Convert to fraction form
    2,915.90/4,023.92 = 1,589.59/x
  3. Step 3: Cross multiply
    2,915.90x = 4,023.92 × 1,589.59
  4. Step 4: Simplify right side
    2,915.90x = 6,396,376.91
  5. Step 5: Solve for x
    x = 6,396,376.91/2,915.90
  6. Step 6: Final answer
    x = 2,193.62

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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.