Home / 5,286.78-7,296.05-3,018.79

Finding the Fourth Proportional to 5,286.78, 7,296.05 and 3,018.79

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Solution

The fourth proportional to 5,286.78, 7,296.05 and 3,018.79 is: 4,166.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.78 : 7,296.05 = 3,018.79 : x
  2. Step 2: Convert to fraction form
    5,286.78/7,296.05 = 3,018.79/x
  3. Step 3: Cross multiply
    5,286.78x = 7,296.05 × 3,018.79
  4. Step 4: Simplify right side
    5,286.78x = 22,025,191.21
  5. Step 5: Solve for x
    x = 22,025,191.21/5,286.78
  6. Step 6: Final answer
    x = 4,166.09

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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.