Home / 2,861.13-3,949.91-1,799.22

Finding the Fourth Proportional to 2,861.13, 3,949.91 and 1,799.22

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Solution

The fourth proportional to 2,861.13, 3,949.91 and 1,799.22 is: 2,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.13 : 3,949.91 = 1,799.22 : x
  2. Step 2: Convert to fraction form
    2,861.13/3,949.91 = 1,799.22/x
  3. Step 3: Cross multiply
    2,861.13x = 3,949.91 × 1,799.22
  4. Step 4: Simplify right side
    2,861.13x = 7,106,757.07
  5. Step 5: Solve for x
    x = 7,106,757.07/2,861.13
  6. Step 6: Final answer
    x = 2,483.90

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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.