Home / 3,860.11-5,326.52-2,181.51

Finding the Fourth Proportional to 3,860.11, 5,326.52 and 2,181.51

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Solution

The fourth proportional to 3,860.11, 5,326.52 and 2,181.51 is: 3,010.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.11 : 5,326.52 = 2,181.51 : x
  2. Step 2: Convert to fraction form
    3,860.11/5,326.52 = 2,181.51/x
  3. Step 3: Cross multiply
    3,860.11x = 5,326.52 × 2,181.51
  4. Step 4: Simplify right side
    3,860.11x = 11,619,853.92
  5. Step 5: Solve for x
    x = 11,619,853.92/3,860.11
  6. Step 6: Final answer
    x = 3,010.24

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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.