Home / 3,860.02-5,326.82-2,091.62

Finding the Fourth Proportional to 3,860.02, 5,326.82 and 2,091.62

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Solution

The fourth proportional to 3,860.02, 5,326.82 and 2,091.62 is: 2,886.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.02 : 5,326.82 = 2,091.62 : x
  2. Step 2: Convert to fraction form
    3,860.02/5,326.82 = 2,091.62/x
  3. Step 3: Cross multiply
    3,860.02x = 5,326.82 × 2,091.62
  4. Step 4: Simplify right side
    3,860.02x = 11,141,683.25
  5. Step 5: Solve for x
    x = 11,141,683.25/3,860.02
  6. Step 6: Final answer
    x = 2,886.43

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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.