Home / 2,715.96-3,747.85-1,536.96

Finding the Fourth Proportional to 2,715.96, 3,747.85 and 1,536.96

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Solution

The fourth proportional to 2,715.96, 3,747.85 and 1,536.96 is: 2,120.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.96 : 3,747.85 = 1,536.96 : x
  2. Step 2: Convert to fraction form
    2,715.96/3,747.85 = 1,536.96/x
  3. Step 3: Cross multiply
    2,715.96x = 3,747.85 × 1,536.96
  4. Step 4: Simplify right side
    2,715.96x = 5,760,305.75
  5. Step 5: Solve for x
    x = 5,760,305.75/2,715.96
  6. Step 6: Final answer
    x = 2,120.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.