Home / 5,212.28-7,192.68-2,854.28

Finding the Fourth Proportional to 5,212.28, 7,192.68 and 2,854.28

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Solution

The fourth proportional to 5,212.28, 7,192.68 and 2,854.28 is: 3,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.28 : 7,192.68 = 2,854.28 : x
  2. Step 2: Convert to fraction form
    5,212.28/7,192.68 = 2,854.28/x
  3. Step 3: Cross multiply
    5,212.28x = 7,192.68 × 2,854.28
  4. Step 4: Simplify right side
    5,212.28x = 20,529,922.67
  5. Step 5: Solve for x
    x = 20,529,922.67/5,212.28
  6. Step 6: Final answer
    x = 3,938.76

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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.