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Finding the Fourth Proportional to 5,761.20, 7,949.34 and 3,403.74

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Solution

The fourth proportional to 5,761.20, 7,949.34 and 3,403.74 is: 4,696.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,761.20 : 7,949.34 = 3,403.74 : x
  2. Step 2: Convert to fraction form
    5,761.20/7,949.34 = 3,403.74/x
  3. Step 3: Cross multiply
    5,761.20x = 7,949.34 × 3,403.74
  4. Step 4: Simplify right side
    5,761.20x = 27,057,486.53
  5. Step 5: Solve for x
    x = 27,057,486.53/5,761.20
  6. Step 6: Final answer
    x = 4,696.50

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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.