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Finding the Fourth Proportional to 3,608.17, 5,415.10 and 1,853.10

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Solution

The fourth proportional to 3,608.17, 5,415.10 and 1,853.10 is: 2,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.17 : 5,415.10 = 1,853.10 : x
  2. Step 2: Convert to fraction form
    3,608.17/5,415.10 = 1,853.10/x
  3. Step 3: Cross multiply
    3,608.17x = 5,415.10 × 1,853.10
  4. Step 4: Simplify right side
    3,608.17x = 10,034,717.18
  5. Step 5: Solve for x
    x = 10,034,717.18/3,608.17
  6. Step 6: Final answer
    x = 2,781.11

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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.