Home / 2,915.72-4,023.66-1,589.42

Finding the Fourth Proportional to 2,915.72, 4,023.66 and 1,589.42

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Solution

The fourth proportional to 2,915.72, 4,023.66 and 1,589.42 is: 2,193.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.72 : 4,023.66 = 1,589.42 : x
  2. Step 2: Convert to fraction form
    2,915.72/4,023.66 = 1,589.42/x
  3. Step 3: Cross multiply
    2,915.72x = 4,023.66 × 1,589.42
  4. Step 4: Simplify right side
    2,915.72x = 6,395,265.56
  5. Step 5: Solve for x
    x = 6,395,265.56/2,915.72
  6. Step 6: Final answer
    x = 2,193.38

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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.