Home / 2,645.20-3,963.30-1,719.34

Finding the Fourth Proportional to 2,645.20, 3,963.30 and 1,719.34

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Solution

The fourth proportional to 2,645.20, 3,963.30 and 1,719.34 is: 2,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.20 : 3,963.30 = 1,719.34 : x
  2. Step 2: Convert to fraction form
    2,645.20/3,963.30 = 1,719.34/x
  3. Step 3: Cross multiply
    2,645.20x = 3,963.30 × 1,719.34
  4. Step 4: Simplify right side
    2,645.20x = 6,814,260.22
  5. Step 5: Solve for x
    x = 6,814,260.22/2,645.20
  6. Step 6: Final answer
    x = 2,576.09

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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.