Home / 5,243.07-7,862.49-2,122.44

Finding the Fourth Proportional to 5,243.07, 7,862.49 and 2,122.44

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Solution

The fourth proportional to 5,243.07, 7,862.49 and 2,122.44 is: 3,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.07 : 7,862.49 = 2,122.44 : x
  2. Step 2: Convert to fraction form
    5,243.07/7,862.49 = 2,122.44/x
  3. Step 3: Cross multiply
    5,243.07x = 7,862.49 × 2,122.44
  4. Step 4: Simplify right side
    5,243.07x = 16,687,663.28
  5. Step 5: Solve for x
    x = 16,687,663.28/5,243.07
  6. Step 6: Final answer
    x = 3,182.80

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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.