Home / 2,021.76-3,029.76-1,252.80

Finding the Fourth Proportional to 2,021.76, 3,029.76 and 1,252.80

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Solution

The fourth proportional to 2,021.76, 3,029.76 and 1,252.80 is: 1,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.76 : 3,029.76 = 1,252.80 : x
  2. Step 2: Convert to fraction form
    2,021.76/3,029.76 = 1,252.80/x
  3. Step 3: Cross multiply
    2,021.76x = 3,029.76 × 1,252.80
  4. Step 4: Simplify right side
    2,021.76x = 3,795,683.33
  5. Step 5: Solve for x
    x = 3,795,683.33/2,021.76
  6. Step 6: Final answer
    x = 1,877.42

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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.