Home / 3,386.66-5,079.70-1,165.31

Finding the Fourth Proportional to 3,386.66, 5,079.70 and 1,165.31

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Solution

The fourth proportional to 3,386.66, 5,079.70 and 1,165.31 is: 1,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.66 : 5,079.70 = 1,165.31 : x
  2. Step 2: Convert to fraction form
    3,386.66/5,079.70 = 1,165.31/x
  3. Step 3: Cross multiply
    3,386.66x = 5,079.70 × 1,165.31
  4. Step 4: Simplify right side
    3,386.66x = 5,919,393.98
  5. Step 5: Solve for x
    x = 5,919,393.98/3,386.66
  6. Step 6: Final answer
    x = 1,747.86

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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.