Home / 2,216.15-3,319.97-1,239.29

Finding the Fourth Proportional to 2,216.15, 3,319.97 and 1,239.29

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Solution

The fourth proportional to 2,216.15, 3,319.97 and 1,239.29 is: 1,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.15 : 3,319.97 = 1,239.29 : x
  2. Step 2: Convert to fraction form
    2,216.15/3,319.97 = 1,239.29/x
  3. Step 3: Cross multiply
    2,216.15x = 3,319.97 × 1,239.29
  4. Step 4: Simplify right side
    2,216.15x = 4,114,405.62
  5. Step 5: Solve for x
    x = 4,114,405.62/2,216.15
  6. Step 6: Final answer
    x = 1,856.56

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1.5x scale

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.