Home / 5,543.28-8,309.80-2,078.32

Finding the Fourth Proportional to 5,543.28, 8,309.80 and 2,078.32

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Solution

The fourth proportional to 5,543.28, 8,309.80 and 2,078.32 is: 3,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,543.28 : 8,309.80 = 2,078.32 : x
  2. Step 2: Convert to fraction form
    5,543.28/8,309.80 = 2,078.32/x
  3. Step 3: Cross multiply
    5,543.28x = 8,309.80 × 2,078.32
  4. Step 4: Simplify right side
    5,543.28x = 17,270,423.54
  5. Step 5: Solve for x
    x = 17,270,423.54/5,543.28
  6. Step 6: Final answer
    x = 3,115.56

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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.