Home / 3,860.31-5,327.23-2,091.92

Finding the Fourth Proportional to 3,860.31, 5,327.23 and 2,091.92

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Solution

The fourth proportional to 3,860.31, 5,327.23 and 2,091.92 is: 2,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.31 : 5,327.23 = 2,091.92 : x
  2. Step 2: Convert to fraction form
    3,860.31/5,327.23 = 2,091.92/x
  3. Step 3: Cross multiply
    3,860.31x = 5,327.23 × 2,091.92
  4. Step 4: Simplify right side
    3,860.31x = 11,144,146.82
  5. Step 5: Solve for x
    x = 11,144,146.82/3,860.31
  6. Step 6: Final answer
    x = 2,886.85

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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.