Home / 9,160.40-13,736.05-2,919.60

Finding the Fourth Proportional to 9,160.40, 13,736.05 and 2,919.60

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Solution

The fourth proportional to 9,160.40, 13,736.05 and 2,919.60 is: 4,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160.40 : 13,736.05 = 2,919.60 : x
  2. Step 2: Convert to fraction form
    9,160.40/13,736.05 = 2,919.60/x
  3. Step 3: Cross multiply
    9,160.40x = 13,736.05 × 2,919.60
  4. Step 4: Simplify right side
    9,160.40x = 40,103,771.58
  5. Step 5: Solve for x
    x = 40,103,771.58/9,160.40
  6. Step 6: Final answer
    x = 4,377.95

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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.