Home / 2,310.90-3,199.41-2,195.70

Finding the Fourth Proportional to 2,310.90, 3,199.41 and 2,195.70

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Solution

The fourth proportional to 2,310.90, 3,199.41 and 2,195.70 is: 3,039.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.90 : 3,199.41 = 2,195.70 : x
  2. Step 2: Convert to fraction form
    2,310.90/3,199.41 = 2,195.70/x
  3. Step 3: Cross multiply
    2,310.90x = 3,199.41 × 2,195.70
  4. Step 4: Simplify right side
    2,310.90x = 7,024,944.54
  5. Step 5: Solve for x
    x = 7,024,944.54/2,310.90
  6. Step 6: Final answer
    x = 3,039.92

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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.