Home / 3,911.58-5,868.05-1,721.85

Finding the Fourth Proportional to 3,911.58, 5,868.05 and 1,721.85

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Solution

The fourth proportional to 3,911.58, 5,868.05 and 1,721.85 is: 2,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.58 : 5,868.05 = 1,721.85 : x
  2. Step 2: Convert to fraction form
    3,911.58/5,868.05 = 1,721.85/x
  3. Step 3: Cross multiply
    3,911.58x = 5,868.05 × 1,721.85
  4. Step 4: Simplify right side
    3,911.58x = 10,103,901.89
  5. Step 5: Solve for x
    x = 10,103,901.89/3,911.58
  6. Step 6: Final answer
    x = 2,583.07

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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.