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Finding the Fourth Proportional to 3,868.08, 5,802.96 and 1,270.92

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Solution

The fourth proportional to 3,868.08, 5,802.96 and 1,270.92 is: 1,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.08 : 5,802.96 = 1,270.92 : x
  2. Step 2: Convert to fraction form
    3,868.08/5,802.96 = 1,270.92/x
  3. Step 3: Cross multiply
    3,868.08x = 5,802.96 × 1,270.92
  4. Step 4: Simplify right side
    3,868.08x = 7,375,097.92
  5. Step 5: Solve for x
    x = 7,375,097.92/3,868.08
  6. Step 6: Final answer
    x = 1,906.66

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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.