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Finding the Fourth Proportional to 6,752, 10,129.80 and 2,135

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Solution

The fourth proportional to 6,752, 10,129.80 and 2,135 is: 3,203.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,752 : 10,129.80 = 2,135 : x
  2. Step 2: Convert to fraction form
    6,752/10,129.80 = 2,135/x
  3. Step 3: Cross multiply
    6,752x = 10,129.80 × 2,135
  4. Step 4: Simplify right side
    6,752x = 21,627,123
  5. Step 5: Solve for x
    x = 21,627,123/6,752
  6. Step 6: Final answer
    x = 3,203.07

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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.