Home / 1,719.56-2,579.34-1,103.56

Finding the Fourth Proportional to 1,719.56, 2,579.34 and 1,103.56

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Solution

The fourth proportional to 1,719.56, 2,579.34 and 1,103.56 is: 1,655.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.56 : 2,579.34 = 1,103.56 : x
  2. Step 2: Convert to fraction form
    1,719.56/2,579.34 = 1,103.56/x
  3. Step 3: Cross multiply
    1,719.56x = 2,579.34 × 1,103.56
  4. Step 4: Simplify right side
    1,719.56x = 2,846,443.55
  5. Step 5: Solve for x
    x = 2,846,443.55/1,719.56
  6. Step 6: Final answer
    x = 1,655.33

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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.