Home / 3,910.65-5,395.37-2,230.87

Finding the Fourth Proportional to 3,910.65, 5,395.37 and 2,230.87

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Solution

The fourth proportional to 3,910.65, 5,395.37 and 2,230.87 is: 3,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.65 : 5,395.37 = 2,230.87 : x
  2. Step 2: Convert to fraction form
    3,910.65/5,395.37 = 2,230.87/x
  3. Step 3: Cross multiply
    3,910.65x = 5,395.37 × 2,230.87
  4. Step 4: Simplify right side
    3,910.65x = 12,036,377.21
  5. Step 5: Solve for x
    x = 12,036,377.21/3,910.65
  6. Step 6: Final answer
    x = 3,077.85

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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.