Home / 3,386.43-5,079.42-1,077.75

Finding the Fourth Proportional to 3,386.43, 5,079.42 and 1,077.75

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Solution

The fourth proportional to 3,386.43, 5,079.42 and 1,077.75 is: 1,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.43 : 5,079.42 = 1,077.75 : x
  2. Step 2: Convert to fraction form
    3,386.43/5,079.42 = 1,077.75/x
  3. Step 3: Cross multiply
    3,386.43x = 5,079.42 × 1,077.75
  4. Step 4: Simplify right side
    3,386.43x = 5,474,344.91
  5. Step 5: Solve for x
    x = 5,474,344.91/3,386.43
  6. Step 6: Final answer
    x = 1,616.55

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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.