Home / 3,120.85-4,306.66-1,794.54

Finding the Fourth Proportional to 3,120.85, 4,306.66 and 1,794.54

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Solution

The fourth proportional to 3,120.85, 4,306.66 and 1,794.54 is: 2,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.85 : 4,306.66 = 1,794.54 : x
  2. Step 2: Convert to fraction form
    3,120.85/4,306.66 = 1,794.54/x
  3. Step 3: Cross multiply
    3,120.85x = 4,306.66 × 1,794.54
  4. Step 4: Simplify right side
    3,120.85x = 7,728,473.64
  5. Step 5: Solve for x
    x = 7,728,473.64/3,120.85
  6. Step 6: Final answer
    x = 2,476.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.