Home / 2,218.44-3,329.72-1,123.58

Finding the Fourth Proportional to 2,218.44, 3,329.72 and 1,123.58

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Solution

The fourth proportional to 2,218.44, 3,329.72 and 1,123.58 is: 1,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.44 : 3,329.72 = 1,123.58 : x
  2. Step 2: Convert to fraction form
    2,218.44/3,329.72 = 1,123.58/x
  3. Step 3: Cross multiply
    2,218.44x = 3,329.72 × 1,123.58
  4. Step 4: Simplify right side
    2,218.44x = 3,741,206.80
  5. Step 5: Solve for x
    x = 3,741,206.80/2,218.44
  6. Step 6: Final answer
    x = 1,686.41

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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.