Home / 5,310.66-7,959.12-2,187.18

Finding the Fourth Proportional to 5,310.66, 7,959.12 and 2,187.18

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Solution

The fourth proportional to 5,310.66, 7,959.12 and 2,187.18 is: 3,277.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.66 : 7,959.12 = 2,187.18 : x
  2. Step 2: Convert to fraction form
    5,310.66/7,959.12 = 2,187.18/x
  3. Step 3: Cross multiply
    5,310.66x = 7,959.12 × 2,187.18
  4. Step 4: Simplify right side
    5,310.66x = 17,408,028.08
  5. Step 5: Solve for x
    x = 17,408,028.08/5,310.66
  6. Step 6: Final answer
    x = 3,277.94

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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.