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Finding the Fourth Proportional to 3,939.04, 5,907.28 and 1,473.76

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Solution

The fourth proportional to 3,939.04, 5,907.28 and 1,473.76 is: 2,210.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.04 : 5,907.28 = 1,473.76 : x
  2. Step 2: Convert to fraction form
    3,939.04/5,907.28 = 1,473.76/x
  3. Step 3: Cross multiply
    3,939.04x = 5,907.28 × 1,473.76
  4. Step 4: Simplify right side
    3,939.04x = 8,705,912.97
  5. Step 5: Solve for x
    x = 8,705,912.97/3,939.04
  6. Step 6: Final answer
    x = 2,210.16

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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.