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Finding the Fourth Proportional to 3,830.76, 5,746.94 and 1,233.90

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Solution

The fourth proportional to 3,830.76, 5,746.94 and 1,233.90 is: 1,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.76 : 5,746.94 = 1,233.90 : x
  2. Step 2: Convert to fraction form
    3,830.76/5,746.94 = 1,233.90/x
  3. Step 3: Cross multiply
    3,830.76x = 5,746.94 × 1,233.90
  4. Step 4: Simplify right side
    3,830.76x = 7,091,149.27
  5. Step 5: Solve for x
    x = 7,091,149.27/3,830.76
  6. Step 6: Final answer
    x = 1,851.11

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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.