Home / 3,860.36-5,327.29-2,091.97

Finding the Fourth Proportional to 3,860.36, 5,327.29 and 2,091.97

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Solution

The fourth proportional to 3,860.36, 5,327.29 and 2,091.97 is: 2,886.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.36 : 5,327.29 = 2,091.97 : x
  2. Step 2: Convert to fraction form
    3,860.36/5,327.29 = 2,091.97/x
  3. Step 3: Cross multiply
    3,860.36x = 5,327.29 × 2,091.97
  4. Step 4: Simplify right side
    3,860.36x = 11,144,520.40
  5. Step 5: Solve for x
    x = 11,144,520.40/3,860.36
  6. Step 6: Final answer
    x = 2,886.91

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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.