Home / 3,434.38-5,146.70-1,678.09

Finding the Fourth Proportional to 3,434.38, 5,146.70 and 1,678.09

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Solution

The fourth proportional to 3,434.38, 5,146.70 and 1,678.09 is: 2,514.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.38 : 5,146.70 = 1,678.09 : x
  2. Step 2: Convert to fraction form
    3,434.38/5,146.70 = 1,678.09/x
  3. Step 3: Cross multiply
    3,434.38x = 5,146.70 × 1,678.09
  4. Step 4: Simplify right side
    3,434.38x = 8,636,625.80
  5. Step 5: Solve for x
    x = 8,636,625.80/3,434.38
  6. Step 6: Final answer
    x = 2,514.76

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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.