Home / 3,330.18-4,994.87-1,138.73

Finding the Fourth Proportional to 3,330.18, 4,994.87 and 1,138.73

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Solution

The fourth proportional to 3,330.18, 4,994.87 and 1,138.73 is: 1,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.18 : 4,994.87 = 1,138.73 : x
  2. Step 2: Convert to fraction form
    3,330.18/4,994.87 = 1,138.73/x
  3. Step 3: Cross multiply
    3,330.18x = 4,994.87 × 1,138.73
  4. Step 4: Simplify right side
    3,330.18x = 5,687,777.65
  5. Step 5: Solve for x
    x = 5,687,777.65/3,330.18
  6. Step 6: Final answer
    x = 1,707.95

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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.