Home / 2,299.85-3,173.80-1,251.91

Finding the Fourth Proportional to 2,299.85, 3,173.80 and 1,251.91

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Solution

The fourth proportional to 2,299.85, 3,173.80 and 1,251.91 is: 1,727.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.85 : 3,173.80 = 1,251.91 : x
  2. Step 2: Convert to fraction form
    2,299.85/3,173.80 = 1,251.91/x
  3. Step 3: Cross multiply
    2,299.85x = 3,173.80 × 1,251.91
  4. Step 4: Simplify right side
    2,299.85x = 3,973,324.07
  5. Step 5: Solve for x
    x = 3,973,324.07/2,299.85
  6. Step 6: Final answer
    x = 1,727.64

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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.