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Finding the Fourth Proportional to 3,858.04, 5,787.70 and 1,806.04

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Solution

The fourth proportional to 3,858.04, 5,787.70 and 1,806.04 is: 2,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.04 : 5,787.70 = 1,806.04 : x
  2. Step 2: Convert to fraction form
    3,858.04/5,787.70 = 1,806.04/x
  3. Step 3: Cross multiply
    3,858.04x = 5,787.70 × 1,806.04
  4. Step 4: Simplify right side
    3,858.04x = 10,452,817.71
  5. Step 5: Solve for x
    x = 10,452,817.71/3,858.04
  6. Step 6: Final answer
    x = 2,709.36

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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.