Home / 3,891.10-5,367.36-2,377.96

Finding the Fourth Proportional to 3,891.10, 5,367.36 and 2,377.96

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Solution

The fourth proportional to 3,891.10, 5,367.36 and 2,377.96 is: 3,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.10 : 5,367.36 = 2,377.96 : x
  2. Step 2: Convert to fraction form
    3,891.10/5,367.36 = 2,377.96/x
  3. Step 3: Cross multiply
    3,891.10x = 5,367.36 × 2,377.96
  4. Step 4: Simplify right side
    3,891.10x = 12,763,367.39
  5. Step 5: Solve for x
    x = 12,763,367.39/3,891.10
  6. Step 6: Final answer
    x = 3,280.15

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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.