Home / 2,638.89-3,954.90-1,077.08

Finding the Fourth Proportional to 2,638.89, 3,954.90 and 1,077.08

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Solution

The fourth proportional to 2,638.89, 3,954.90 and 1,077.08 is: 1,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.89 : 3,954.90 = 1,077.08 : x
  2. Step 2: Convert to fraction form
    2,638.89/3,954.90 = 1,077.08/x
  3. Step 3: Cross multiply
    2,638.89x = 3,954.90 × 1,077.08
  4. Step 4: Simplify right side
    2,638.89x = 4,259,723.92
  5. Step 5: Solve for x
    x = 4,259,723.92/2,638.89
  6. Step 6: Final answer
    x = 1,614.21

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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.