Home / 2,643.22-3,961.96-1,719.43

Finding the Fourth Proportional to 2,643.22, 3,961.96 and 1,719.43

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Solution

The fourth proportional to 2,643.22, 3,961.96 and 1,719.43 is: 2,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.22 : 3,961.96 = 1,719.43 : x
  2. Step 2: Convert to fraction form
    2,643.22/3,961.96 = 1,719.43/x
  3. Step 3: Cross multiply
    2,643.22x = 3,961.96 × 1,719.43
  4. Step 4: Simplify right side
    2,643.22x = 6,812,312.88
  5. Step 5: Solve for x
    x = 6,812,312.88/2,643.22
  6. Step 6: Final answer
    x = 2,577.28

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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.