Home / 5,157.31-7,733.35-2,520.88

Finding the Fourth Proportional to 5,157.31, 7,733.35 and 2,520.88

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Solution

The fourth proportional to 5,157.31, 7,733.35 and 2,520.88 is: 3,780.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.31 : 7,733.35 = 2,520.88 : x
  2. Step 2: Convert to fraction form
    5,157.31/7,733.35 = 2,520.88/x
  3. Step 3: Cross multiply
    5,157.31x = 7,733.35 × 2,520.88
  4. Step 4: Simplify right side
    5,157.31x = 19,494,847.35
  5. Step 5: Solve for x
    x = 19,494,847.35/5,157.31
  6. Step 6: Final answer
    x = 3,780.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.