Home / 5,388.78-8,077.76-2,269.56

Finding the Fourth Proportional to 5,388.78, 8,077.76 and 2,269.56

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Solution

The fourth proportional to 5,388.78, 8,077.76 and 2,269.56 is: 3,402.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.78 : 8,077.76 = 2,269.56 : x
  2. Step 2: Convert to fraction form
    5,388.78/8,077.76 = 2,269.56/x
  3. Step 3: Cross multiply
    5,388.78x = 8,077.76 × 2,269.56
  4. Step 4: Simplify right side
    5,388.78x = 18,332,960.99
  5. Step 5: Solve for x
    x = 18,332,960.99/5,388.78
  6. Step 6: Final answer
    x = 3,402.06

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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.