Home / 4,378.38-6,568-1,456.90

Finding the Fourth Proportional to 4,378.38, 6,568 and 1,456.90

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Solution

The fourth proportional to 4,378.38, 6,568 and 1,456.90 is: 2,185.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.38 : 6,568 = 1,456.90 : x
  2. Step 2: Convert to fraction form
    4,378.38/6,568 = 1,456.90/x
  3. Step 3: Cross multiply
    4,378.38x = 6,568 × 1,456.90
  4. Step 4: Simplify right side
    4,378.38x = 9,568,919.20
  5. Step 5: Solve for x
    x = 9,568,919.20/4,378.38
  6. Step 6: Final answer
    x = 2,185.49

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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.