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Finding the Fourth Proportional to 2,951.68, 4,071.76 and 1,755.82

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Solution

The fourth proportional to 2,951.68, 4,071.76 and 1,755.82 is: 2,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.68 : 4,071.76 = 1,755.82 : x
  2. Step 2: Convert to fraction form
    2,951.68/4,071.76 = 1,755.82/x
  3. Step 3: Cross multiply
    2,951.68x = 4,071.76 × 1,755.82
  4. Step 4: Simplify right side
    2,951.68x = 7,149,255.44
  5. Step 5: Solve for x
    x = 7,149,255.44/2,951.68
  6. Step 6: Final answer
    x = 2,422.10

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1.5x scale

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.