Home / 5,386.38-8,079.46-2,936.79

Finding the Fourth Proportional to 5,386.38, 8,079.46 and 2,936.79

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Solution

The fourth proportional to 5,386.38, 8,079.46 and 2,936.79 is: 4,405.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.38 : 8,079.46 = 2,936.79 : x
  2. Step 2: Convert to fraction form
    5,386.38/8,079.46 = 2,936.79/x
  3. Step 3: Cross multiply
    5,386.38x = 8,079.46 × 2,936.79
  4. Step 4: Simplify right side
    5,386.38x = 23,727,677.33
  5. Step 5: Solve for x
    x = 23,727,677.33/5,386.38
  6. Step 6: Final answer
    x = 4,405.13

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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.