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Finding the Fourth Proportional to 5,754.60, 7,939.30 and 3,395.56

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Solution

The fourth proportional to 5,754.60, 7,939.30 and 3,395.56 is: 4,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,754.60 : 7,939.30 = 3,395.56 : x
  2. Step 2: Convert to fraction form
    5,754.60/7,939.30 = 3,395.56/x
  3. Step 3: Cross multiply
    5,754.60x = 7,939.30 × 3,395.56
  4. Step 4: Simplify right side
    5,754.60x = 26,958,369.51
  5. Step 5: Solve for x
    x = 26,958,369.51/5,754.60
  6. Step 6: Final answer
    x = 4,684.66

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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.