Home / 2,073.78-3,108.24-1,149.12

Finding the Fourth Proportional to 2,073.78, 3,108.24 and 1,149.12

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Solution

The fourth proportional to 2,073.78, 3,108.24 and 1,149.12 is: 1,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.78 : 3,108.24 = 1,149.12 : x
  2. Step 2: Convert to fraction form
    2,073.78/3,108.24 = 1,149.12/x
  3. Step 3: Cross multiply
    2,073.78x = 3,108.24 × 1,149.12
  4. Step 4: Simplify right side
    2,073.78x = 3,571,740.75
  5. Step 5: Solve for x
    x = 3,571,740.75/2,073.78
  6. Step 6: Final answer
    x = 1,722.33

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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.