Home / 3,808.04-5,255.40-2,215.28

Finding the Fourth Proportional to 3,808.04, 5,255.40 and 2,215.28

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Solution

The fourth proportional to 3,808.04, 5,255.40 and 2,215.28 is: 3,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.04 : 5,255.40 = 2,215.28 : x
  2. Step 2: Convert to fraction form
    3,808.04/5,255.40 = 2,215.28/x
  3. Step 3: Cross multiply
    3,808.04x = 5,255.40 × 2,215.28
  4. Step 4: Simplify right side
    3,808.04x = 11,642,182.51
  5. Step 5: Solve for x
    x = 11,642,182.51/3,808.04
  6. Step 6: Final answer
    x = 3,057.26

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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.