Home / 5,489.15-8,231.70-2,714.90

Finding the Fourth Proportional to 5,489.15, 8,231.70 and 2,714.90

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Solution

The fourth proportional to 5,489.15, 8,231.70 and 2,714.90 is: 4,071.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.15 : 8,231.70 = 2,714.90 : x
  2. Step 2: Convert to fraction form
    5,489.15/8,231.70 = 2,714.90/x
  3. Step 3: Cross multiply
    5,489.15x = 8,231.70 × 2,714.90
  4. Step 4: Simplify right side
    5,489.15x = 22,348,242.33
  5. Step 5: Solve for x
    x = 22,348,242.33/5,489.15
  6. Step 6: Final answer
    x = 4,071.35

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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.