Home / 3,815.78-5,721.67-1,350.24

Finding the Fourth Proportional to 3,815.78, 5,721.67 and 1,350.24

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Solution

The fourth proportional to 3,815.78, 5,721.67 and 1,350.24 is: 2,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.78 : 5,721.67 = 1,350.24 : x
  2. Step 2: Convert to fraction form
    3,815.78/5,721.67 = 1,350.24/x
  3. Step 3: Cross multiply
    3,815.78x = 5,721.67 × 1,350.24
  4. Step 4: Simplify right side
    3,815.78x = 7,725,607.93
  5. Step 5: Solve for x
    x = 7,725,607.93/3,815.78
  6. Step 6: Final answer
    x = 2,024.65

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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.