Home / 5,391.20-8,086.80-3,048.80

Finding the Fourth Proportional to 5,391.20, 8,086.80 and 3,048.80

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Solution

The fourth proportional to 5,391.20, 8,086.80 and 3,048.80 is: 4,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.20 : 8,086.80 = 3,048.80 : x
  2. Step 2: Convert to fraction form
    5,391.20/8,086.80 = 3,048.80/x
  3. Step 3: Cross multiply
    5,391.20x = 8,086.80 × 3,048.80
  4. Step 4: Simplify right side
    5,391.20x = 24,655,035.84
  5. Step 5: Solve for x
    x = 24,655,035.84/5,391.20
  6. Step 6: Final answer
    x = 4,573.20

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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.