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Finding the Fourth Proportional to 2,640.16, 3,641.80 and 1,592

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Solution

The fourth proportional to 2,640.16, 3,641.80 and 1,592 is: 2,195.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.16 : 3,641.80 = 1,592 : x
  2. Step 2: Convert to fraction form
    2,640.16/3,641.80 = 1,592/x
  3. Step 3: Cross multiply
    2,640.16x = 3,641.80 × 1,592
  4. Step 4: Simplify right side
    2,640.16x = 5,797,745.60
  5. Step 5: Solve for x
    x = 5,797,745.60/2,640.16
  6. Step 6: Final answer
    x = 2,195.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.