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Finding the Fourth Proportional to 3,863.62, 5,792.82 and 1,230.34

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Solution

The fourth proportional to 3,863.62, 5,792.82 and 1,230.34 is: 1,844.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.62 : 5,792.82 = 1,230.34 : x
  2. Step 2: Convert to fraction form
    3,863.62/5,792.82 = 1,230.34/x
  3. Step 3: Cross multiply
    3,863.62x = 5,792.82 × 1,230.34
  4. Step 4: Simplify right side
    3,863.62x = 7,127,129.92
  5. Step 5: Solve for x
    x = 7,127,129.92/3,863.62
  6. Step 6: Final answer
    x = 1,844.67

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1.5x scale

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.