Home / 5,645.72-8,473.78-2,874.38

Finding the Fourth Proportional to 5,645.72, 8,473.78 and 2,874.38

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Solution

The fourth proportional to 5,645.72, 8,473.78 and 2,874.38 is: 4,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.72 : 8,473.78 = 2,874.38 : x
  2. Step 2: Convert to fraction form
    5,645.72/8,473.78 = 2,874.38/x
  3. Step 3: Cross multiply
    5,645.72x = 8,473.78 × 2,874.38
  4. Step 4: Simplify right side
    5,645.72x = 24,356,824.98
  5. Step 5: Solve for x
    x = 24,356,824.98/5,645.72
  6. Step 6: Final answer
    x = 4,314.21

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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.