Home / 3,808.14-5,256.35-2,215.16

Finding the Fourth Proportional to 3,808.14, 5,256.35 and 2,215.16

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Solution

The fourth proportional to 3,808.14, 5,256.35 and 2,215.16 is: 3,057.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.14 : 5,256.35 = 2,215.16 : x
  2. Step 2: Convert to fraction form
    3,808.14/5,256.35 = 2,215.16/x
  3. Step 3: Cross multiply
    3,808.14x = 5,256.35 × 2,215.16
  4. Step 4: Simplify right side
    3,808.14x = 11,643,618.91
  5. Step 5: Solve for x
    x = 11,643,618.91/3,808.14
  6. Step 6: Final answer
    x = 3,057.56

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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.