Home / 5,359.20-8,035.20-2,860.80

Finding the Fourth Proportional to 5,359.20, 8,035.20 and 2,860.80

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Solution

The fourth proportional to 5,359.20, 8,035.20 and 2,860.80 is: 4,289.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.20 : 8,035.20 = 2,860.80 : x
  2. Step 2: Convert to fraction form
    5,359.20/8,035.20 = 2,860.80/x
  3. Step 3: Cross multiply
    5,359.20x = 8,035.20 × 2,860.80
  4. Step 4: Simplify right side
    5,359.20x = 22,987,100.16
  5. Step 5: Solve for x
    x = 22,987,100.16/5,359.20
  6. Step 6: Final answer
    x = 4,289.28

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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.