Home / 2,615.38-3,917.75-1,226.77

Finding the Fourth Proportional to 2,615.38, 3,917.75 and 1,226.77

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Solution

The fourth proportional to 2,615.38, 3,917.75 and 1,226.77 is: 1,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.38 : 3,917.75 = 1,226.77 : x
  2. Step 2: Convert to fraction form
    2,615.38/3,917.75 = 1,226.77/x
  3. Step 3: Cross multiply
    2,615.38x = 3,917.75 × 1,226.77
  4. Step 4: Simplify right side
    2,615.38x = 4,806,178.17
  5. Step 5: Solve for x
    x = 4,806,178.17/2,615.38
  6. Step 6: Final answer
    x = 1,837.66

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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.