Home / 3,189.36-4,342.30-3,179.49

Finding the Fourth Proportional to 3,189.36, 4,342.30 and 3,179.49

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Solution

The fourth proportional to 3,189.36, 4,342.30 and 3,179.49 is: 4,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.36 : 4,342.30 = 3,179.49 : x
  2. Step 2: Convert to fraction form
    3,189.36/4,342.30 = 3,179.49/x
  3. Step 3: Cross multiply
    3,189.36x = 4,342.30 × 3,179.49
  4. Step 4: Simplify right side
    3,189.36x = 13,806,299.43
  5. Step 5: Solve for x
    x = 13,806,299.43/3,189.36
  6. Step 6: Final answer
    x = 4,328.86

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.