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Finding the Fourth Proportional to 3,760.84, 5,640 and 1,568.44

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Solution

The fourth proportional to 3,760.84, 5,640 and 1,568.44 is: 2,352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.84 : 5,640 = 1,568.44 : x
  2. Step 2: Convert to fraction form
    3,760.84/5,640 = 1,568.44/x
  3. Step 3: Cross multiply
    3,760.84x = 5,640 × 1,568.44
  4. Step 4: Simplify right side
    3,760.84x = 8,846,001.60
  5. Step 5: Solve for x
    x = 8,846,001.60/3,760.84
  6. Step 6: Final answer
    x = 2,352.13

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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.