Home / 2,088.26-3,138.06-1,115

Finding the Fourth Proportional to 2,088.26, 3,138.06 and 1,115

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Solution

The fourth proportional to 2,088.26, 3,138.06 and 1,115 is: 1,675.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.26 : 3,138.06 = 1,115 : x
  2. Step 2: Convert to fraction form
    2,088.26/3,138.06 = 1,115/x
  3. Step 3: Cross multiply
    2,088.26x = 3,138.06 × 1,115
  4. Step 4: Simplify right side
    2,088.26x = 3,498,936.90
  5. Step 5: Solve for x
    x = 3,498,936.90/2,088.26
  6. Step 6: Final answer
    x = 1,675.53

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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.