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Finding the Fourth Proportional to 3,752, 5,177.88 and 2,180.24

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Solution

The fourth proportional to 3,752, 5,177.88 and 2,180.24 is: 3,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752 : 5,177.88 = 2,180.24 : x
  2. Step 2: Convert to fraction form
    3,752/5,177.88 = 2,180.24/x
  3. Step 3: Cross multiply
    3,752x = 5,177.88 × 2,180.24
  4. Step 4: Simplify right side
    3,752x = 11,289,021.09
  5. Step 5: Solve for x
    x = 11,289,021.09/3,752
  6. Step 6: Final answer
    x = 3,008.80

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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.