Home / 3,389.25-5,079.98-1,308.23

Finding the Fourth Proportional to 3,389.25, 5,079.98 and 1,308.23

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Solution

The fourth proportional to 3,389.25, 5,079.98 and 1,308.23 is: 1,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.25 : 5,079.98 = 1,308.23 : x
  2. Step 2: Convert to fraction form
    3,389.25/5,079.98 = 1,308.23/x
  3. Step 3: Cross multiply
    3,389.25x = 5,079.98 × 1,308.23
  4. Step 4: Simplify right side
    3,389.25x = 6,645,750.29
  5. Step 5: Solve for x
    x = 6,645,750.29/3,389.25
  6. Step 6: Final answer
    x = 1,960.83

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1.5x scale

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.