Home / 5,179.23-7,765.65-2,219.61

Finding the Fourth Proportional to 5,179.23, 7,765.65 and 2,219.61

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Solution

The fourth proportional to 5,179.23, 7,765.65 and 2,219.61 is: 3,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.23 : 7,765.65 = 2,219.61 : x
  2. Step 2: Convert to fraction form
    5,179.23/7,765.65 = 2,219.61/x
  3. Step 3: Cross multiply
    5,179.23x = 7,765.65 × 2,219.61
  4. Step 4: Simplify right side
    5,179.23x = 17,236,714.40
  5. Step 5: Solve for x
    x = 17,236,714.40/5,179.23
  6. Step 6: Final answer
    x = 3,328.05

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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.