Home / 5,719.38-8,578.74-2,208.70

Finding the Fourth Proportional to 5,719.38, 8,578.74 and 2,208.70

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Solution

The fourth proportional to 5,719.38, 8,578.74 and 2,208.70 is: 3,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.38 : 8,578.74 = 2,208.70 : x
  2. Step 2: Convert to fraction form
    5,719.38/8,578.74 = 2,208.70/x
  3. Step 3: Cross multiply
    5,719.38x = 8,578.74 × 2,208.70
  4. Step 4: Simplify right side
    5,719.38x = 18,947,863.04
  5. Step 5: Solve for x
    x = 18,947,863.04/5,719.38
  6. Step 6: Final answer
    x = 3,312.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.