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Finding the Fourth Proportional to 3,374.40, 5,061.60 and 3,009.60

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Solution

The fourth proportional to 3,374.40, 5,061.60 and 3,009.60 is: 4,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,374.40 : 5,061.60 = 3,009.60 : x
  2. Step 2: Convert to fraction form
    3,374.40/5,061.60 = 3,009.60/x
  3. Step 3: Cross multiply
    3,374.40x = 5,061.60 × 3,009.60
  4. Step 4: Simplify right side
    3,374.40x = 15,233,391.36
  5. Step 5: Solve for x
    x = 15,233,391.36/3,374.40
  6. Step 6: Final answer
    x = 4,514.40

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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.