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Finding the Fourth Proportional to 3,343.79, 5,015.01 and 1,152.74

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Solution

The fourth proportional to 3,343.79, 5,015.01 and 1,152.74 is: 1,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,343.79 : 5,015.01 = 1,152.74 : x
  2. Step 2: Convert to fraction form
    3,343.79/5,015.01 = 1,152.74/x
  3. Step 3: Cross multiply
    3,343.79x = 5,015.01 × 1,152.74
  4. Step 4: Simplify right side
    3,343.79x = 5,781,002.63
  5. Step 5: Solve for x
    x = 5,781,002.63/3,343.79
  6. Step 6: Final answer
    x = 1,728.88

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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.