Home / 5,470.43-8,205.25-2,138.06

Finding the Fourth Proportional to 5,470.43, 8,205.25 and 2,138.06

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Solution

The fourth proportional to 5,470.43, 8,205.25 and 2,138.06 is: 3,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.43 : 8,205.25 = 2,138.06 : x
  2. Step 2: Convert to fraction form
    5,470.43/8,205.25 = 2,138.06/x
  3. Step 3: Cross multiply
    5,470.43x = 8,205.25 × 2,138.06
  4. Step 4: Simplify right side
    5,470.43x = 17,543,309.23
  5. Step 5: Solve for x
    x = 17,543,309.23/5,470.43
  6. Step 6: Final answer
    x = 3,206.93

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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.