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Finding the Fourth Proportional to 2,976.79, 4,107.93 and 1,650.49

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Solution

The fourth proportional to 2,976.79, 4,107.93 and 1,650.49 is: 2,277.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.79 : 4,107.93 = 1,650.49 : x
  2. Step 2: Convert to fraction form
    2,976.79/4,107.93 = 1,650.49/x
  3. Step 3: Cross multiply
    2,976.79x = 4,107.93 × 1,650.49
  4. Step 4: Simplify right side
    2,976.79x = 6,780,097.39
  5. Step 5: Solve for x
    x = 6,780,097.39/2,976.79
  6. Step 6: Final answer
    x = 2,277.65

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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.