Home / 2,715.36-3,747.20-1,536.65

Finding the Fourth Proportional to 2,715.36, 3,747.20 and 1,536.65

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Solution

The fourth proportional to 2,715.36, 3,747.20 and 1,536.65 is: 2,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.36 : 3,747.20 = 1,536.65 : x
  2. Step 2: Convert to fraction form
    2,715.36/3,747.20 = 1,536.65/x
  3. Step 3: Cross multiply
    2,715.36x = 3,747.20 × 1,536.65
  4. Step 4: Simplify right side
    2,715.36x = 5,758,134.88
  5. Step 5: Solve for x
    x = 5,758,134.88/2,715.36
  6. Step 6: Final answer
    x = 2,120.58

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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.