Home / 5,540.16-8,309.28-2,076.80

Finding the Fourth Proportional to 5,540.16, 8,309.28 and 2,076.80

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Solution

The fourth proportional to 5,540.16, 8,309.28 and 2,076.80 is: 3,114.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.16 : 8,309.28 = 2,076.80 : x
  2. Step 2: Convert to fraction form
    5,540.16/8,309.28 = 2,076.80/x
  3. Step 3: Cross multiply
    5,540.16x = 8,309.28 × 2,076.80
  4. Step 4: Simplify right side
    5,540.16x = 17,256,712.70
  5. Step 5: Solve for x
    x = 17,256,712.70/5,540.16
  6. Step 6: Final answer
    x = 3,114.84

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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.