Home / 3,845.10-5,767.50-1,212.60

Finding the Fourth Proportional to 3,845.10, 5,767.50 and 1,212.60

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Solution

The fourth proportional to 3,845.10, 5,767.50 and 1,212.60 is: 1,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.10 : 5,767.50 = 1,212.60 : x
  2. Step 2: Convert to fraction form
    3,845.10/5,767.50 = 1,212.60/x
  3. Step 3: Cross multiply
    3,845.10x = 5,767.50 × 1,212.60
  4. Step 4: Simplify right side
    3,845.10x = 6,993,670.50
  5. Step 5: Solve for x
    x = 6,993,670.50/3,845.10
  6. Step 6: Final answer
    x = 1,818.85

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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.