Home / 3,180.39-4,385.91-2,434.38

Finding the Fourth Proportional to 3,180.39, 4,385.91 and 2,434.38

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Solution

The fourth proportional to 3,180.39, 4,385.91 and 2,434.38 is: 3,357.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.39 : 4,385.91 = 2,434.38 : x
  2. Step 2: Convert to fraction form
    3,180.39/4,385.91 = 2,434.38/x
  3. Step 3: Cross multiply
    3,180.39x = 4,385.91 × 2,434.38
  4. Step 4: Simplify right side
    3,180.39x = 10,676,971.59
  5. Step 5: Solve for x
    x = 10,676,971.59/3,180.39
  6. Step 6: Final answer
    x = 3,357.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.