Home / 5,183.78-7,153.61-2,825.91

Finding the Fourth Proportional to 5,183.78, 7,153.61 and 2,825.91

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Solution

The fourth proportional to 5,183.78, 7,153.61 and 2,825.91 is: 3,899.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.78 : 7,153.61 = 2,825.91 : x
  2. Step 2: Convert to fraction form
    5,183.78/7,153.61 = 2,825.91/x
  3. Step 3: Cross multiply
    5,183.78x = 7,153.61 × 2,825.91
  4. Step 4: Simplify right side
    5,183.78x = 20,215,443.91
  5. Step 5: Solve for x
    x = 20,215,443.91/5,183.78
  6. Step 6: Final answer
    x = 3,899.75

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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.