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Finding the Fourth Proportional to 3,877.76, 5,817.36 and 1,282.52

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Solution

The fourth proportional to 3,877.76, 5,817.36 and 1,282.52 is: 1,924.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.76 : 5,817.36 = 1,282.52 : x
  2. Step 2: Convert to fraction form
    3,877.76/5,817.36 = 1,282.52/x
  3. Step 3: Cross multiply
    3,877.76x = 5,817.36 × 1,282.52
  4. Step 4: Simplify right side
    3,877.76x = 7,460,880.55
  5. Step 5: Solve for x
    x = 7,460,880.55/3,877.76
  6. Step 6: Final answer
    x = 1,924.02

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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.