Home / 3,330.42-4,994.34-1,138.56

Finding the Fourth Proportional to 3,330.42, 4,994.34 and 1,138.56

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Solution

The fourth proportional to 3,330.42, 4,994.34 and 1,138.56 is: 1,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.42 : 4,994.34 = 1,138.56 : x
  2. Step 2: Convert to fraction form
    3,330.42/4,994.34 = 1,138.56/x
  3. Step 3: Cross multiply
    3,330.42x = 4,994.34 × 1,138.56
  4. Step 4: Simplify right side
    3,330.42x = 5,686,355.75
  5. Step 5: Solve for x
    x = 5,686,355.75/3,330.42
  6. Step 6: Final answer
    x = 1,707.40

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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.