Home / 3,860.22-5,327.12-2,091.84

Finding the Fourth Proportional to 3,860.22, 5,327.12 and 2,091.84

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Solution

The fourth proportional to 3,860.22, 5,327.12 and 2,091.84 is: 2,886.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.22 : 5,327.12 = 2,091.84 : x
  2. Step 2: Convert to fraction form
    3,860.22/5,327.12 = 2,091.84/x
  3. Step 3: Cross multiply
    3,860.22x = 5,327.12 × 2,091.84
  4. Step 4: Simplify right side
    3,860.22x = 11,143,482.70
  5. Step 5: Solve for x
    x = 11,143,482.70/3,860.22
  6. Step 6: Final answer
    x = 2,886.75

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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.