Home / 3,860.06-5,326.86-2,091.66

Finding the Fourth Proportional to 3,860.06, 5,326.86 and 2,091.66

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Solution

The fourth proportional to 3,860.06, 5,326.86 and 2,091.66 is: 2,886.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.06 : 5,326.86 = 2,091.66 : x
  2. Step 2: Convert to fraction form
    3,860.06/5,326.86 = 2,091.66/x
  3. Step 3: Cross multiply
    3,860.06x = 5,326.86 × 2,091.66
  4. Step 4: Simplify right side
    3,860.06x = 11,141,979.99
  5. Step 5: Solve for x
    x = 11,141,979.99/3,860.06
  6. Step 6: Final answer
    x = 2,886.48

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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.