Home / 3,543.18-5,313.02-1,321.92

Finding the Fourth Proportional to 3,543.18, 5,313.02 and 1,321.92

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Solution

The fourth proportional to 3,543.18, 5,313.02 and 1,321.92 is: 1,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.18 : 5,313.02 = 1,321.92 : x
  2. Step 2: Convert to fraction form
    3,543.18/5,313.02 = 1,321.92/x
  3. Step 3: Cross multiply
    3,543.18x = 5,313.02 × 1,321.92
  4. Step 4: Simplify right side
    3,543.18x = 7,023,388.22
  5. Step 5: Solve for x
    x = 7,023,388.22/3,543.18
  6. Step 6: Final answer
    x = 1,982.23

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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.