Home / 5,217.42-7,200.12-2,859.66

Finding the Fourth Proportional to 5,217.42, 7,200.12 and 2,859.66

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Solution

The fourth proportional to 5,217.42, 7,200.12 and 2,859.66 is: 3,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.42 : 7,200.12 = 2,859.66 : x
  2. Step 2: Convert to fraction form
    5,217.42/7,200.12 = 2,859.66/x
  3. Step 3: Cross multiply
    5,217.42x = 7,200.12 × 2,859.66
  4. Step 4: Simplify right side
    5,217.42x = 20,589,895.16
  5. Step 5: Solve for x
    x = 20,589,895.16/5,217.42
  6. Step 6: Final answer
    x = 3,946.37

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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.