Home / 2,729.06-3,765.90-1,550.12

Finding the Fourth Proportional to 2,729.06, 3,765.90 and 1,550.12

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Solution

The fourth proportional to 2,729.06, 3,765.90 and 1,550.12 is: 2,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.06 : 3,765.90 = 1,550.12 : x
  2. Step 2: Convert to fraction form
    2,729.06/3,765.90 = 1,550.12/x
  3. Step 3: Cross multiply
    2,729.06x = 3,765.90 × 1,550.12
  4. Step 4: Simplify right side
    2,729.06x = 5,837,596.91
  5. Step 5: Solve for x
    x = 5,837,596.91/2,729.06
  6. Step 6: Final answer
    x = 2,139.05

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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.