Home / 3,845.64-5,768.46-1,248.78

Finding the Fourth Proportional to 3,845.64, 5,768.46 and 1,248.78

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Solution

The fourth proportional to 3,845.64, 5,768.46 and 1,248.78 is: 1,873.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.64 : 5,768.46 = 1,248.78 : x
  2. Step 2: Convert to fraction form
    3,845.64/5,768.46 = 1,248.78/x
  3. Step 3: Cross multiply
    3,845.64x = 5,768.46 × 1,248.78
  4. Step 4: Simplify right side
    3,845.64x = 7,203,537.48
  5. Step 5: Solve for x
    x = 7,203,537.48/3,845.64
  6. Step 6: Final answer
    x = 1,873.17

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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.