Home / 3,860.08-5,326.85-2,181.42

Finding the Fourth Proportional to 3,860.08, 5,326.85 and 2,181.42

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Solution

The fourth proportional to 3,860.08, 5,326.85 and 2,181.42 is: 3,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.08 : 5,326.85 = 2,181.42 : x
  2. Step 2: Convert to fraction form
    3,860.08/5,326.85 = 2,181.42/x
  3. Step 3: Cross multiply
    3,860.08x = 5,326.85 × 2,181.42
  4. Step 4: Simplify right side
    3,860.08x = 11,620,102.58
  5. Step 5: Solve for x
    x = 11,620,102.58/3,860.08
  6. Step 6: Final answer
    x = 3,010.33

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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.