Home / 2,268.19-3,128.29-1,371.88

Finding the Fourth Proportional to 2,268.19, 3,128.29 and 1,371.88

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Solution

The fourth proportional to 2,268.19, 3,128.29 and 1,371.88 is: 1,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.19 : 3,128.29 = 1,371.88 : x
  2. Step 2: Convert to fraction form
    2,268.19/3,128.29 = 1,371.88/x
  3. Step 3: Cross multiply
    2,268.19x = 3,128.29 × 1,371.88
  4. Step 4: Simplify right side
    2,268.19x = 4,291,638.49
  5. Step 5: Solve for x
    x = 4,291,638.49/2,268.19
  6. Step 6: Final answer
    x = 1,892.10

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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.