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Finding the Fourth Proportional to 2,951.50, 4,054.85 and 2,640.88

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Solution

The fourth proportional to 2,951.50, 4,054.85 and 2,640.88 is: 3,628.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.50 : 4,054.85 = 2,640.88 : x
  2. Step 2: Convert to fraction form
    2,951.50/4,054.85 = 2,640.88/x
  3. Step 3: Cross multiply
    2,951.50x = 4,054.85 × 2,640.88
  4. Step 4: Simplify right side
    2,951.50x = 10,708,372.27
  5. Step 5: Solve for x
    x = 10,708,372.27/2,951.50
  6. Step 6: Final answer
    x = 3,628.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.