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Finding the Fourth Proportional to 5,755.67, 7,942.76 and 3,397.79

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Solution

The fourth proportional to 5,755.67, 7,942.76 and 3,397.79 is: 4,688.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.67 : 7,942.76 = 3,397.79 : x
  2. Step 2: Convert to fraction form
    5,755.67/7,942.76 = 3,397.79/x
  3. Step 3: Cross multiply
    5,755.67x = 7,942.76 × 3,397.79
  4. Step 4: Simplify right side
    5,755.67x = 26,987,813.51
  5. Step 5: Solve for x
    x = 26,987,813.51/5,755.67
  6. Step 6: Final answer
    x = 4,688.91

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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.