Home / 5,217.47-7,200.11-2,859.56

Finding the Fourth Proportional to 5,217.47, 7,200.11 and 2,859.56

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Solution

The fourth proportional to 5,217.47, 7,200.11 and 2,859.56 is: 3,946.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.47 : 7,200.11 = 2,859.56 : x
  2. Step 2: Convert to fraction form
    5,217.47/7,200.11 = 2,859.56/x
  3. Step 3: Cross multiply
    5,217.47x = 7,200.11 × 2,859.56
  4. Step 4: Simplify right side
    5,217.47x = 20,589,128.62
  5. Step 5: Solve for x
    x = 20,589,128.62/5,217.47
  6. Step 6: Final answer
    x = 3,946.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.