Home / 7,845.61-11,771.85-2,914.18

Finding the Fourth Proportional to 7,845.61, 11,771.85 and 2,914.18

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Solution

The fourth proportional to 7,845.61, 11,771.85 and 2,914.18 is: 4,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.61 : 11,771.85 = 2,914.18 : x
  2. Step 2: Convert to fraction form
    7,845.61/11,771.85 = 2,914.18/x
  3. Step 3: Cross multiply
    7,845.61x = 11,771.85 × 2,914.18
  4. Step 4: Simplify right side
    7,845.61x = 34,305,289.83
  5. Step 5: Solve for x
    x = 34,305,289.83/7,845.61
  6. Step 6: Final answer
    x = 4,372.55

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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.