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Finding the Fourth Proportional to 3,604.02, 4,978.29 and 2,908.02

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Solution

The fourth proportional to 3,604.02, 4,978.29 and 2,908.02 is: 4,016.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.02 : 4,978.29 = 2,908.02 : x
  2. Step 2: Convert to fraction form
    3,604.02/4,978.29 = 2,908.02/x
  3. Step 3: Cross multiply
    3,604.02x = 4,978.29 × 2,908.02
  4. Step 4: Simplify right side
    3,604.02x = 14,476,966.89
  5. Step 5: Solve for x
    x = 14,476,966.89/3,604.02
  6. Step 6: Final answer
    x = 4,016.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.