Home / 3,319.30-4,972.20-2,662.66

Finding the Fourth Proportional to 3,319.30, 4,972.20 and 2,662.66

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Solution

The fourth proportional to 3,319.30, 4,972.20 and 2,662.66 is: 3,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.30 : 4,972.20 = 2,662.66 : x
  2. Step 2: Convert to fraction form
    3,319.30/4,972.20 = 2,662.66/x
  3. Step 3: Cross multiply
    3,319.30x = 4,972.20 × 2,662.66
  4. Step 4: Simplify right side
    3,319.30x = 13,239,278.05
  5. Step 5: Solve for x
    x = 13,239,278.05/3,319.30
  6. Step 6: Final answer
    x = 3,988.58

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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.