Home / 5,217.88-7,200.84-2,860.20

Finding the Fourth Proportional to 5,217.88, 7,200.84 and 2,860.20

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Solution

The fourth proportional to 5,217.88, 7,200.84 and 2,860.20 is: 3,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.88 : 7,200.84 = 2,860.20 : x
  2. Step 2: Convert to fraction form
    5,217.88/7,200.84 = 2,860.20/x
  3. Step 3: Cross multiply
    5,217.88x = 7,200.84 × 2,860.20
  4. Step 4: Simplify right side
    5,217.88x = 20,595,842.57
  5. Step 5: Solve for x
    x = 20,595,842.57/5,217.88
  6. Step 6: Final answer
    x = 3,947.17

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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.