Home / 3,845.43-5,768.67-1,380.93

Finding the Fourth Proportional to 3,845.43, 5,768.67 and 1,380.93

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Solution

The fourth proportional to 3,845.43, 5,768.67 and 1,380.93 is: 2,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.43 : 5,768.67 = 1,380.93 : x
  2. Step 2: Convert to fraction form
    3,845.43/5,768.67 = 1,380.93/x
  3. Step 3: Cross multiply
    3,845.43x = 5,768.67 × 1,380.93
  4. Step 4: Simplify right side
    3,845.43x = 7,966,129.46
  5. Step 5: Solve for x
    x = 7,966,129.46/3,845.43
  6. Step 6: Final answer
    x = 2,071.58

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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.