Home / 3,849.80-5,774.70-2,001.20

Finding the Fourth Proportional to 3,849.80, 5,774.70 and 2,001.20

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Solution

The fourth proportional to 3,849.80, 5,774.70 and 2,001.20 is: 3,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.80 : 5,774.70 = 2,001.20 : x
  2. Step 2: Convert to fraction form
    3,849.80/5,774.70 = 2,001.20/x
  3. Step 3: Cross multiply
    3,849.80x = 5,774.70 × 2,001.20
  4. Step 4: Simplify right side
    3,849.80x = 11,556,329.64
  5. Step 5: Solve for x
    x = 11,556,329.64/3,849.80
  6. Step 6: Final answer
    x = 3,001.80

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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.