Home / 2,218.90-3,330.39-1,124.03

Finding the Fourth Proportional to 2,218.90, 3,330.39 and 1,124.03

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Solution

The fourth proportional to 2,218.90, 3,330.39 and 1,124.03 is: 1,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.90 : 3,330.39 = 1,124.03 : x
  2. Step 2: Convert to fraction form
    2,218.90/3,330.39 = 1,124.03/x
  3. Step 3: Cross multiply
    2,218.90x = 3,330.39 × 1,124.03
  4. Step 4: Simplify right side
    2,218.90x = 3,743,458.27
  5. Step 5: Solve for x
    x = 3,743,458.27/2,218.90
  6. Step 6: Final answer
    x = 1,687.08

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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.