Home / 3,742.26-5,166.09-2,169.78

Finding the Fourth Proportional to 3,742.26, 5,166.09 and 2,169.78

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Solution

The fourth proportional to 3,742.26, 5,166.09 and 2,169.78 is: 2,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.26 : 5,166.09 = 2,169.78 : x
  2. Step 2: Convert to fraction form
    3,742.26/5,166.09 = 2,169.78/x
  3. Step 3: Cross multiply
    3,742.26x = 5,166.09 × 2,169.78
  4. Step 4: Simplify right side
    3,742.26x = 11,209,278.76
  5. Step 5: Solve for x
    x = 11,209,278.76/3,742.26
  6. Step 6: Final answer
    x = 2,995.32

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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.