Home / 3,543.80-5,315.70-3,342.20

Finding the Fourth Proportional to 3,543.80, 5,315.70 and 3,342.20

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Solution

The fourth proportional to 3,543.80, 5,315.70 and 3,342.20 is: 5,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.80 : 5,315.70 = 3,342.20 : x
  2. Step 2: Convert to fraction form
    3,543.80/5,315.70 = 3,342.20/x
  3. Step 3: Cross multiply
    3,543.80x = 5,315.70 × 3,342.20
  4. Step 4: Simplify right side
    3,543.80x = 17,766,132.54
  5. Step 5: Solve for x
    x = 17,766,132.54/3,543.80
  6. Step 6: Final answer
    x = 5,013.30

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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.