Home / 5,247.38-7,868.61-1,959.59

Finding the Fourth Proportional to 5,247.38, 7,868.61 and 1,959.59

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Solution

The fourth proportional to 5,247.38, 7,868.61 and 1,959.59 is: 2,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.38 : 7,868.61 = 1,959.59 : x
  2. Step 2: Convert to fraction form
    5,247.38/7,868.61 = 1,959.59/x
  3. Step 3: Cross multiply
    5,247.38x = 7,868.61 × 1,959.59
  4. Step 4: Simplify right side
    5,247.38x = 15,419,269.14
  5. Step 5: Solve for x
    x = 15,419,269.14/5,247.38
  6. Step 6: Final answer
    x = 2,938.47

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1.5x scale

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.