Home / 5,217.29-7,199.95-2,859.28

Finding the Fourth Proportional to 5,217.29, 7,199.95 and 2,859.28

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Solution

The fourth proportional to 5,217.29, 7,199.95 and 2,859.28 is: 3,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.29 : 7,199.95 = 2,859.28 : x
  2. Step 2: Convert to fraction form
    5,217.29/7,199.95 = 2,859.28/x
  3. Step 3: Cross multiply
    5,217.29x = 7,199.95 × 2,859.28
  4. Step 4: Simplify right side
    5,217.29x = 20,586,673.04
  5. Step 5: Solve for x
    x = 20,586,673.04/5,217.29
  6. Step 6: Final answer
    x = 3,945.86

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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.