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Finding the Fourth Proportional to 3,985.88, 5,976.39 and 1,518.07

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Solution

The fourth proportional to 3,985.88, 5,976.39 and 1,518.07 is: 2,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.88 : 5,976.39 = 1,518.07 : x
  2. Step 2: Convert to fraction form
    3,985.88/5,976.39 = 1,518.07/x
  3. Step 3: Cross multiply
    3,985.88x = 5,976.39 × 1,518.07
  4. Step 4: Simplify right side
    3,985.88x = 9,072,563.43
  5. Step 5: Solve for x
    x = 9,072,563.43/3,985.88
  6. Step 6: Final answer
    x = 2,276.17

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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.