Home / 3,182.40-4,791.60-2,318.40

Finding the Fourth Proportional to 3,182.40, 4,791.60 and 2,318.40

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Solution

The fourth proportional to 3,182.40, 4,791.60 and 2,318.40 is: 3,490.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.40 : 4,791.60 = 2,318.40 : x
  2. Step 2: Convert to fraction form
    3,182.40/4,791.60 = 2,318.40/x
  3. Step 3: Cross multiply
    3,182.40x = 4,791.60 × 2,318.40
  4. Step 4: Simplify right side
    3,182.40x = 11,108,845.44
  5. Step 5: Solve for x
    x = 11,108,845.44/3,182.40
  6. Step 6: Final answer
    x = 3,490.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.