Home / 5,227.20-7,213.77-2,869.56

Finding the Fourth Proportional to 5,227.20, 7,213.77 and 2,869.56

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Solution

The fourth proportional to 5,227.20, 7,213.77 and 2,869.56 is: 3,960.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.20 : 7,213.77 = 2,869.56 : x
  2. Step 2: Convert to fraction form
    5,227.20/7,213.77 = 2,869.56/x
  3. Step 3: Cross multiply
    5,227.20x = 7,213.77 × 2,869.56
  4. Step 4: Simplify right side
    5,227.20x = 20,700,345.84
  5. Step 5: Solve for x
    x = 20,700,345.84/5,227.20
  6. Step 6: Final answer
    x = 3,960.12

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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.