Home / 2,860.44-3,949.32-2,196.12

Finding the Fourth Proportional to 2,860.44, 3,949.32 and 2,196.12

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Solution

The fourth proportional to 2,860.44, 3,949.32 and 2,196.12 is: 3,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.44 : 3,949.32 = 2,196.12 : x
  2. Step 2: Convert to fraction form
    2,860.44/3,949.32 = 2,196.12/x
  3. Step 3: Cross multiply
    2,860.44x = 3,949.32 × 2,196.12
  4. Step 4: Simplify right side
    2,860.44x = 8,673,180.64
  5. Step 5: Solve for x
    x = 8,673,180.64/2,860.44
  6. Step 6: Final answer
    x = 3,032.11

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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.