Home / 2,218.45-3,328.41-1,122.52

Finding the Fourth Proportional to 2,218.45, 3,328.41 and 1,122.52

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Solution

The fourth proportional to 2,218.45, 3,328.41 and 1,122.52 is: 1,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.45 : 3,328.41 = 1,122.52 : x
  2. Step 2: Convert to fraction form
    2,218.45/3,328.41 = 1,122.52/x
  3. Step 3: Cross multiply
    2,218.45x = 3,328.41 × 1,122.52
  4. Step 4: Simplify right side
    2,218.45x = 3,736,206.79
  5. Step 5: Solve for x
    x = 3,736,206.79/2,218.45
  6. Step 6: Final answer
    x = 1,684.15

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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.