Home / 2,758.31-4,137.47-1,114.86

Finding the Fourth Proportional to 2,758.31, 4,137.47 and 1,114.86

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Solution

The fourth proportional to 2,758.31, 4,137.47 and 1,114.86 is: 1,672.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.31 : 4,137.47 = 1,114.86 : x
  2. Step 2: Convert to fraction form
    2,758.31/4,137.47 = 1,114.86/x
  3. Step 3: Cross multiply
    2,758.31x = 4,137.47 × 1,114.86
  4. Step 4: Simplify right side
    2,758.31x = 4,612,685.29
  5. Step 5: Solve for x
    x = 4,612,685.29/2,758.31
  6. Step 6: Final answer
    x = 1,672.29

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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.