Home / 2,750.79-4,126.17-1,290.96

Finding the Fourth Proportional to 2,750.79, 4,126.17 and 1,290.96

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Solution

The fourth proportional to 2,750.79, 4,126.17 and 1,290.96 is: 1,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.79 : 4,126.17 = 1,290.96 : x
  2. Step 2: Convert to fraction form
    2,750.79/4,126.17 = 1,290.96/x
  3. Step 3: Cross multiply
    2,750.79x = 4,126.17 × 1,290.96
  4. Step 4: Simplify right side
    2,750.79x = 5,326,720.42
  5. Step 5: Solve for x
    x = 5,326,720.42/2,750.79
  6. Step 6: Final answer
    x = 1,936.43

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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.