Home / 5,217.51-7,200.18-2,859.80

Finding the Fourth Proportional to 5,217.51, 7,200.18 and 2,859.80

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Solution

The fourth proportional to 5,217.51, 7,200.18 and 2,859.80 is: 3,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.51 : 7,200.18 = 2,859.80 : x
  2. Step 2: Convert to fraction form
    5,217.51/7,200.18 = 2,859.80/x
  3. Step 3: Cross multiply
    5,217.51x = 7,200.18 × 2,859.80
  4. Step 4: Simplify right side
    5,217.51x = 20,591,060.47
  5. Step 5: Solve for x
    x = 20,591,060.47/5,217.51
  6. Step 6: Final answer
    x = 3,946.53

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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.