Home / 2,822.72-4,231.64-1,090.13

Finding the Fourth Proportional to 2,822.72, 4,231.64 and 1,090.13

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Solution

The fourth proportional to 2,822.72, 4,231.64 and 1,090.13 is: 1,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.72 : 4,231.64 = 1,090.13 : x
  2. Step 2: Convert to fraction form
    2,822.72/4,231.64 = 1,090.13/x
  3. Step 3: Cross multiply
    2,822.72x = 4,231.64 × 1,090.13
  4. Step 4: Simplify right side
    2,822.72x = 4,613,019.28
  5. Step 5: Solve for x
    x = 4,613,019.28/2,822.72
  6. Step 6: Final answer
    x = 1,634.25

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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.