Home / 5,217.85-7,200.59-2,859.99

Finding the Fourth Proportional to 5,217.85, 7,200.59 and 2,859.99

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Solution

The fourth proportional to 5,217.85, 7,200.59 and 2,859.99 is: 3,946.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.85 : 7,200.59 = 2,859.99 : x
  2. Step 2: Convert to fraction form
    5,217.85/7,200.59 = 2,859.99/x
  3. Step 3: Cross multiply
    5,217.85x = 7,200.59 × 2,859.99
  4. Step 4: Simplify right side
    5,217.85x = 20,593,615.39
  5. Step 5: Solve for x
    x = 20,593,615.39/5,217.85
  6. Step 6: Final answer
    x = 3,946.76

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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.