Home / 3,860.16-5,326.74-2,181.48

Finding the Fourth Proportional to 3,860.16, 5,326.74 and 2,181.48

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Solution

The fourth proportional to 3,860.16, 5,326.74 and 2,181.48 is: 3,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.16 : 5,326.74 = 2,181.48 : x
  2. Step 2: Convert to fraction form
    3,860.16/5,326.74 = 2,181.48/x
  3. Step 3: Cross multiply
    3,860.16x = 5,326.74 × 2,181.48
  4. Step 4: Simplify right side
    3,860.16x = 11,620,176.78
  5. Step 5: Solve for x
    x = 11,620,176.78/3,860.16
  6. Step 6: Final answer
    x = 3,010.28

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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.