Home / 3,729.70-5,139.57-2,664.46

Finding the Fourth Proportional to 3,729.70, 5,139.57 and 2,664.46

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Solution

The fourth proportional to 3,729.70, 5,139.57 and 2,664.46 is: 3,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.70 : 5,139.57 = 2,664.46 : x
  2. Step 2: Convert to fraction form
    3,729.70/5,139.57 = 2,664.46/x
  3. Step 3: Cross multiply
    3,729.70x = 5,139.57 × 2,664.46
  4. Step 4: Simplify right side
    3,729.70x = 13,694,178.68
  5. Step 5: Solve for x
    x = 13,694,178.68/3,729.70
  6. Step 6: Final answer
    x = 3,671.66

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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.