Home / 3,143.78-4,337.69-2,025.09

Finding the Fourth Proportional to 3,143.78, 4,337.69 and 2,025.09

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Solution

The fourth proportional to 3,143.78, 4,337.69 and 2,025.09 is: 2,794.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.78 : 4,337.69 = 2,025.09 : x
  2. Step 2: Convert to fraction form
    3,143.78/4,337.69 = 2,025.09/x
  3. Step 3: Cross multiply
    3,143.78x = 4,337.69 × 2,025.09
  4. Step 4: Simplify right side
    3,143.78x = 8,784,202.52
  5. Step 5: Solve for x
    x = 8,784,202.52/3,143.78
  6. Step 6: Final answer
    x = 2,794.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.