Home / 2,729.19-3,765.76-1,550.06

Finding the Fourth Proportional to 2,729.19, 3,765.76 and 1,550.06

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Solution

The fourth proportional to 2,729.19, 3,765.76 and 1,550.06 is: 2,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.19 : 3,765.76 = 1,550.06 : x
  2. Step 2: Convert to fraction form
    2,729.19/3,765.76 = 1,550.06/x
  3. Step 3: Cross multiply
    2,729.19x = 3,765.76 × 1,550.06
  4. Step 4: Simplify right side
    2,729.19x = 5,837,131.24
  5. Step 5: Solve for x
    x = 5,837,131.24/2,729.19
  6. Step 6: Final answer
    x = 2,138.78

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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.