Home / 2,915.45-4,023.31-1,589.15

Finding the Fourth Proportional to 2,915.45, 4,023.31 and 1,589.15

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Solution

The fourth proportional to 2,915.45, 4,023.31 and 1,589.15 is: 2,193.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.45 : 4,023.31 = 1,589.15 : x
  2. Step 2: Convert to fraction form
    2,915.45/4,023.31 = 1,589.15/x
  3. Step 3: Cross multiply
    2,915.45x = 4,023.31 × 1,589.15
  4. Step 4: Simplify right side
    2,915.45x = 6,393,653.14
  5. Step 5: Solve for x
    x = 6,393,653.14/2,915.45
  6. Step 6: Final answer
    x = 2,193.02

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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.