Home / 2,719.98-4,082.34-1,422.36

Finding the Fourth Proportional to 2,719.98, 4,082.34 and 1,422.36

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Solution

The fourth proportional to 2,719.98, 4,082.34 and 1,422.36 is: 2,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.98 : 4,082.34 = 1,422.36 : x
  2. Step 2: Convert to fraction form
    2,719.98/4,082.34 = 1,422.36/x
  3. Step 3: Cross multiply
    2,719.98x = 4,082.34 × 1,422.36
  4. Step 4: Simplify right side
    2,719.98x = 5,806,557.12
  5. Step 5: Solve for x
    x = 5,806,557.12/2,719.98
  6. Step 6: Final answer
    x = 2,134.78

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