Home / 2,578.56-3,861.63-1,651.25

Finding the Fourth Proportional to 2,578.56, 3,861.63 and 1,651.25

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Solution

The fourth proportional to 2,578.56, 3,861.63 and 1,651.25 is: 2,472.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.56 : 3,861.63 = 1,651.25 : x
  2. Step 2: Convert to fraction form
    2,578.56/3,861.63 = 1,651.25/x
  3. Step 3: Cross multiply
    2,578.56x = 3,861.63 × 1,651.25
  4. Step 4: Simplify right side
    2,578.56x = 6,376,513.08
  5. Step 5: Solve for x
    x = 6,376,513.08/2,578.56
  6. Step 6: Final answer
    x = 2,472.89

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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.