Home / 2,220.05-3,329.76-758.99

Finding the Fourth Proportional to 2,220.05, 3,329.76 and 758.99

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Solution

The fourth proportional to 2,220.05, 3,329.76 and 758.99 is: 1,138.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.05 : 3,329.76 = 758.99 : x
  2. Step 2: Convert to fraction form
    2,220.05/3,329.76 = 758.99/x
  3. Step 3: Cross multiply
    2,220.05x = 3,329.76 × 758.99
  4. Step 4: Simplify right side
    2,220.05x = 2,527,254.54
  5. Step 5: Solve for x
    x = 2,527,254.54/2,220.05
  6. Step 6: Final answer
    x = 1,138.38

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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.