Home / 2,021.36-3,029.82-1,153.76

Finding the Fourth Proportional to 2,021.36, 3,029.82 and 1,153.76

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Solution

The fourth proportional to 2,021.36, 3,029.82 and 1,153.76 is: 1,729.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.36 : 3,029.82 = 1,153.76 : x
  2. Step 2: Convert to fraction form
    2,021.36/3,029.82 = 1,153.76/x
  3. Step 3: Cross multiply
    2,021.36x = 3,029.82 × 1,153.76
  4. Step 4: Simplify right side
    2,021.36x = 3,495,685.12
  5. Step 5: Solve for x
    x = 3,495,685.12/2,021.36
  6. Step 6: Final answer
    x = 1,729.37

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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.