Home / 5,306.30-7,959.20-2,185.53

Finding the Fourth Proportional to 5,306.30, 7,959.20 and 2,185.53

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Solution

The fourth proportional to 5,306.30, 7,959.20 and 2,185.53 is: 3,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.30 : 7,959.20 = 2,185.53 : x
  2. Step 2: Convert to fraction form
    5,306.30/7,959.20 = 2,185.53/x
  3. Step 3: Cross multiply
    5,306.30x = 7,959.20 × 2,185.53
  4. Step 4: Simplify right side
    5,306.30x = 17,395,019.65
  5. Step 5: Solve for x
    x = 17,395,019.65/5,306.30
  6. Step 6: Final answer
    x = 3,278.19

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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.