Home / 2,928.60-4,042.89-2,297.70

Finding the Fourth Proportional to 2,928.60, 4,042.89 and 2,297.70

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Solution

The fourth proportional to 2,928.60, 4,042.89 and 2,297.70 is: 3,171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.60 : 4,042.89 = 2,297.70 : x
  2. Step 2: Convert to fraction form
    2,928.60/4,042.89 = 2,297.70/x
  3. Step 3: Cross multiply
    2,928.60x = 4,042.89 × 2,297.70
  4. Step 4: Simplify right side
    2,928.60x = 9,289,348.35
  5. Step 5: Solve for x
    x = 9,289,348.35/2,928.60
  6. Step 6: Final answer
    x = 3,171.94

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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.