Home / 5,218.62-7,201.71-2,860.76

Finding the Fourth Proportional to 5,218.62, 7,201.71 and 2,860.76

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Solution

The fourth proportional to 5,218.62, 7,201.71 and 2,860.76 is: 3,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.62 : 7,201.71 = 2,860.76 : x
  2. Step 2: Convert to fraction form
    5,218.62/7,201.71 = 2,860.76/x
  3. Step 3: Cross multiply
    5,218.62x = 7,201.71 × 2,860.76
  4. Step 4: Simplify right side
    5,218.62x = 20,602,363.90
  5. Step 5: Solve for x
    x = 20,602,363.90/5,218.62
  6. Step 6: Final answer
    x = 3,947.86

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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.