Home / 3,386.44-5,079.66-1,078.12

Finding the Fourth Proportional to 3,386.44, 5,079.66 and 1,078.12

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Solution

The fourth proportional to 3,386.44, 5,079.66 and 1,078.12 is: 1,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.44 : 5,079.66 = 1,078.12 : x
  2. Step 2: Convert to fraction form
    3,386.44/5,079.66 = 1,078.12/x
  3. Step 3: Cross multiply
    3,386.44x = 5,079.66 × 1,078.12
  4. Step 4: Simplify right side
    3,386.44x = 5,476,483.04
  5. Step 5: Solve for x
    x = 5,476,483.04/3,386.44
  6. Step 6: Final answer
    x = 1,617.18

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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.