Home / 3,860.19-5,327.07-2,091.79

Finding the Fourth Proportional to 3,860.19, 5,327.07 and 2,091.79

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Solution

The fourth proportional to 3,860.19, 5,327.07 and 2,091.79 is: 2,886.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.19 : 5,327.07 = 2,091.79 : x
  2. Step 2: Convert to fraction form
    3,860.19/5,327.07 = 2,091.79/x
  3. Step 3: Cross multiply
    3,860.19x = 5,327.07 × 2,091.79
  4. Step 4: Simplify right side
    3,860.19x = 11,143,110.57
  5. Step 5: Solve for x
    x = 11,143,110.57/3,860.19
  6. Step 6: Final answer
    x = 2,886.68

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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.