Home / 2,260.68-3,388.16-1,221.16

Finding the Fourth Proportional to 2,260.68, 3,388.16 and 1,221.16

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Solution

The fourth proportional to 2,260.68, 3,388.16 and 1,221.16 is: 1,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.68 : 3,388.16 = 1,221.16 : x
  2. Step 2: Convert to fraction form
    2,260.68/3,388.16 = 1,221.16/x
  3. Step 3: Cross multiply
    2,260.68x = 3,388.16 × 1,221.16
  4. Step 4: Simplify right side
    2,260.68x = 4,137,485.47
  5. Step 5: Solve for x
    x = 4,137,485.47/2,260.68
  6. Step 6: Final answer
    x = 1,830.20

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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.