Home / 2,508.32-3,761.11-1,991.64

Finding the Fourth Proportional to 2,508.32, 3,761.11 and 1,991.64

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Solution

The fourth proportional to 2,508.32, 3,761.11 and 1,991.64 is: 2,986.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.32 : 3,761.11 = 1,991.64 : x
  2. Step 2: Convert to fraction form
    2,508.32/3,761.11 = 1,991.64/x
  3. Step 3: Cross multiply
    2,508.32x = 3,761.11 × 1,991.64
  4. Step 4: Simplify right side
    2,508.32x = 7,490,772.14
  5. Step 5: Solve for x
    x = 7,490,772.14/2,508.32
  6. Step 6: Final answer
    x = 2,986.37

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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.