Home / 5,843.78-8,760.46-2,145.15

Finding the Fourth Proportional to 5,843.78, 8,760.46 and 2,145.15

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Solution

The fourth proportional to 5,843.78, 8,760.46 and 2,145.15 is: 3,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,843.78 : 8,760.46 = 2,145.15 : x
  2. Step 2: Convert to fraction form
    5,843.78/8,760.46 = 2,145.15/x
  3. Step 3: Cross multiply
    5,843.78x = 8,760.46 × 2,145.15
  4. Step 4: Simplify right side
    5,843.78x = 18,792,490.04
  5. Step 5: Solve for x
    x = 18,792,490.04/5,843.78
  6. Step 6: Final answer
    x = 3,215.81

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1.5x scale

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.