Home / 3,330.34-4,993.92-1,138.78

Finding the Fourth Proportional to 3,330.34, 4,993.92 and 1,138.78

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Solution

The fourth proportional to 3,330.34, 4,993.92 and 1,138.78 is: 1,707.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.34 : 4,993.92 = 1,138.78 : x
  2. Step 2: Convert to fraction form
    3,330.34/4,993.92 = 1,138.78/x
  3. Step 3: Cross multiply
    3,330.34x = 4,993.92 × 1,138.78
  4. Step 4: Simplify right side
    3,330.34x = 5,686,976.22
  5. Step 5: Solve for x
    x = 5,686,976.22/3,330.34
  6. Step 6: Final answer
    x = 1,707.63

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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.