Home / 2,731.28-3,769.16-1,536.32

Finding the Fourth Proportional to 2,731.28, 3,769.16 and 1,536.32

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Solution

The fourth proportional to 2,731.28, 3,769.16 and 1,536.32 is: 2,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.28 : 3,769.16 = 1,536.32 : x
  2. Step 2: Convert to fraction form
    2,731.28/3,769.16 = 1,536.32/x
  3. Step 3: Cross multiply
    2,731.28x = 3,769.16 × 1,536.32
  4. Step 4: Simplify right side
    2,731.28x = 5,790,609.36
  5. Step 5: Solve for x
    x = 5,790,609.36/2,731.28
  6. Step 6: Final answer
    x = 2,120.11

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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.