Home / 3,719.79-5,581.31-1,410.75

Finding the Fourth Proportional to 3,719.79, 5,581.31 and 1,410.75

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Solution

The fourth proportional to 3,719.79, 5,581.31 and 1,410.75 is: 2,116.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.79 : 5,581.31 = 1,410.75 : x
  2. Step 2: Convert to fraction form
    3,719.79/5,581.31 = 1,410.75/x
  3. Step 3: Cross multiply
    3,719.79x = 5,581.31 × 1,410.75
  4. Step 4: Simplify right side
    3,719.79x = 7,873,826.03
  5. Step 5: Solve for x
    x = 7,873,826.03/3,719.79
  6. Step 6: Final answer
    x = 2,116.74

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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.