Home / 5,218.57-7,201.52-2,860.66

Finding the Fourth Proportional to 5,218.57, 7,201.52 and 2,860.66

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Solution

The fourth proportional to 5,218.57, 7,201.52 and 2,860.66 is: 3,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.57 : 7,201.52 = 2,860.66 : x
  2. Step 2: Convert to fraction form
    5,218.57/7,201.52 = 2,860.66/x
  3. Step 3: Cross multiply
    5,218.57x = 7,201.52 × 2,860.66
  4. Step 4: Simplify right side
    5,218.57x = 20,601,085.90
  5. Step 5: Solve for x
    x = 20,601,085.90/5,218.57
  6. Step 6: Final answer
    x = 3,947.65

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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.