Home / 2,221.19-3,329.90-1,356.11

Finding the Fourth Proportional to 2,221.19, 3,329.90 and 1,356.11

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Solution

The fourth proportional to 2,221.19, 3,329.90 and 1,356.11 is: 2,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.19 : 3,329.90 = 1,356.11 : x
  2. Step 2: Convert to fraction form
    2,221.19/3,329.90 = 1,356.11/x
  3. Step 3: Cross multiply
    2,221.19x = 3,329.90 × 1,356.11
  4. Step 4: Simplify right side
    2,221.19x = 4,515,703.91
  5. Step 5: Solve for x
    x = 4,515,703.91/2,221.19
  6. Step 6: Final answer
    x = 2,033.01

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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.