Home / 5,187.62-7,775.64-2,722.71

Finding the Fourth Proportional to 5,187.62, 7,775.64 and 2,722.71

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Solution

The fourth proportional to 5,187.62, 7,775.64 and 2,722.71 is: 4,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.62 : 7,775.64 = 2,722.71 : x
  2. Step 2: Convert to fraction form
    5,187.62/7,775.64 = 2,722.71/x
  3. Step 3: Cross multiply
    5,187.62x = 7,775.64 × 2,722.71
  4. Step 4: Simplify right side
    5,187.62x = 21,170,812.78
  5. Step 5: Solve for x
    x = 21,170,812.78/5,187.62
  6. Step 6: Final answer
    x = 4,081.03

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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.