Home / 5,227.70-7,214.29-2,869.79

Finding the Fourth Proportional to 5,227.70, 7,214.29 and 2,869.79

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Solution

The fourth proportional to 5,227.70, 7,214.29 and 2,869.79 is: 3,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.70 : 7,214.29 = 2,869.79 : x
  2. Step 2: Convert to fraction form
    5,227.70/7,214.29 = 2,869.79/x
  3. Step 3: Cross multiply
    5,227.70x = 7,214.29 × 2,869.79
  4. Step 4: Simplify right side
    5,227.70x = 20,703,497.30
  5. Step 5: Solve for x
    x = 20,703,497.30/5,227.70
  6. Step 6: Final answer
    x = 3,960.35

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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.