Home / 5,183.82-7,153.68-2,945.70

Finding the Fourth Proportional to 5,183.82, 7,153.68 and 2,945.70

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Solution

The fourth proportional to 5,183.82, 7,153.68 and 2,945.70 is: 4,065.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.82 : 7,153.68 = 2,945.70 : x
  2. Step 2: Convert to fraction form
    5,183.82/7,153.68 = 2,945.70/x
  3. Step 3: Cross multiply
    5,183.82x = 7,153.68 × 2,945.70
  4. Step 4: Simplify right side
    5,183.82x = 21,072,595.18
  5. Step 5: Solve for x
    x = 21,072,595.18/5,183.82
  6. Step 6: Final answer
    x = 4,065.07

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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.