Home / 5,218.29-7,201.17-2,860.43

Finding the Fourth Proportional to 5,218.29, 7,201.17 and 2,860.43

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Solution

The fourth proportional to 5,218.29, 7,201.17 and 2,860.43 is: 3,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.29 : 7,201.17 = 2,860.43 : x
  2. Step 2: Convert to fraction form
    5,218.29/7,201.17 = 2,860.43/x
  3. Step 3: Cross multiply
    5,218.29x = 7,201.17 × 2,860.43
  4. Step 4: Simplify right side
    5,218.29x = 20,598,406.70
  5. Step 5: Solve for x
    x = 20,598,406.70/5,218.29
  6. Step 6: Final answer
    x = 3,947.35

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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.