Home / 3,759.06-5,187.18-2,165.16

Finding the Fourth Proportional to 3,759.06, 5,187.18 and 2,165.16

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Solution

The fourth proportional to 3,759.06, 5,187.18 and 2,165.16 is: 2,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.06 : 5,187.18 = 2,165.16 : x
  2. Step 2: Convert to fraction form
    3,759.06/5,187.18 = 2,165.16/x
  3. Step 3: Cross multiply
    3,759.06x = 5,187.18 × 2,165.16
  4. Step 4: Simplify right side
    3,759.06x = 11,231,074.65
  5. Step 5: Solve for x
    x = 11,231,074.65/3,759.06
  6. Step 6: Final answer
    x = 2,987.73

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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.