Home / 2,767.28-4,148.96-1,305

Finding the Fourth Proportional to 2,767.28, 4,148.96 and 1,305

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Solution

The fourth proportional to 2,767.28, 4,148.96 and 1,305 is: 1,956.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.28 : 4,148.96 = 1,305 : x
  2. Step 2: Convert to fraction form
    2,767.28/4,148.96 = 1,305/x
  3. Step 3: Cross multiply
    2,767.28x = 4,148.96 × 1,305
  4. Step 4: Simplify right side
    2,767.28x = 5,414,386.28
  5. Step 5: Solve for x
    x = 5,414,386.28/2,767.28
  6. Step 6: Final answer
    x = 1,956.58

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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.