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Finding the Fourth Proportional to 5,243.88, 7,868.58 and 1,959.24

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Solution

The fourth proportional to 5,243.88, 7,868.58 and 1,959.24 is: 2,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.88 : 7,868.58 = 1,959.24 : x
  2. Step 2: Convert to fraction form
    5,243.88/7,868.58 = 1,959.24/x
  3. Step 3: Cross multiply
    5,243.88x = 7,868.58 × 1,959.24
  4. Step 4: Simplify right side
    5,243.88x = 15,416,436.68
  5. Step 5: Solve for x
    x = 15,416,436.68/5,243.88
  6. Step 6: Final answer
    x = 2,939.89

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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.