Home / 5,679.87-8,513.82-2,167.62

Finding the Fourth Proportional to 5,679.87, 8,513.82 and 2,167.62

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Solution

The fourth proportional to 5,679.87, 8,513.82 and 2,167.62 is: 3,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.87 : 8,513.82 = 2,167.62 : x
  2. Step 2: Convert to fraction form
    5,679.87/8,513.82 = 2,167.62/x
  3. Step 3: Cross multiply
    5,679.87x = 8,513.82 × 2,167.62
  4. Step 4: Simplify right side
    5,679.87x = 18,454,726.51
  5. Step 5: Solve for x
    x = 18,454,726.51/5,679.87
  6. Step 6: Final answer
    x = 3,249.15

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1.5x scale

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.