Home / 3,916.80-5,910.09-3,764.91

Finding the Fourth Proportional to 3,916.80, 5,910.09 and 3,764.91

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Solution

The fourth proportional to 3,916.80, 5,910.09 and 3,764.91 is: 5,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.80 : 5,910.09 = 3,764.91 : x
  2. Step 2: Convert to fraction form
    3,916.80/5,910.09 = 3,764.91/x
  3. Step 3: Cross multiply
    3,916.80x = 5,910.09 × 3,764.91
  4. Step 4: Simplify right side
    3,916.80x = 22,250,956.94
  5. Step 5: Solve for x
    x = 22,250,956.94/3,916.80
  6. Step 6: Final answer
    x = 5,680.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.