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Finding the Fourth Proportional to 2,752.67, 4,129.37 and 804.84

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Solution

The fourth proportional to 2,752.67, 4,129.37 and 804.84 is: 1,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.67 : 4,129.37 = 804.84 : x
  2. Step 2: Convert to fraction form
    2,752.67/4,129.37 = 804.84/x
  3. Step 3: Cross multiply
    2,752.67x = 4,129.37 × 804.84
  4. Step 4: Simplify right side
    2,752.67x = 3,323,478.13
  5. Step 5: Solve for x
    x = 3,323,478.13/2,752.67
  6. Step 6: Final answer
    x = 1,207.37

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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.