Home / 3,399.30-5,098.50-1,319.12

Finding the Fourth Proportional to 3,399.30, 5,098.50 and 1,319.12

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Solution

The fourth proportional to 3,399.30, 5,098.50 and 1,319.12 is: 1,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.30 : 5,098.50 = 1,319.12 : x
  2. Step 2: Convert to fraction form
    3,399.30/5,098.50 = 1,319.12/x
  3. Step 3: Cross multiply
    3,399.30x = 5,098.50 × 1,319.12
  4. Step 4: Simplify right side
    3,399.30x = 6,725,533.32
  5. Step 5: Solve for x
    x = 6,725,533.32/3,399.30
  6. Step 6: Final answer
    x = 1,978.51

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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.