Home / 3,419.09-5,128.63-822.02

Finding the Fourth Proportional to 3,419.09, 5,128.63 and 822.02

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Solution

The fourth proportional to 3,419.09, 5,128.63 and 822.02 is: 1,233.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.09 : 5,128.63 = 822.02 : x
  2. Step 2: Convert to fraction form
    3,419.09/5,128.63 = 822.02/x
  3. Step 3: Cross multiply
    3,419.09x = 5,128.63 × 822.02
  4. Step 4: Simplify right side
    3,419.09x = 4,215,853.16
  5. Step 5: Solve for x
    x = 4,215,853.16/3,419.09
  6. Step 6: Final answer
    x = 1,233.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.