Home / 3,729.57-5,146.52-2,157.36

Finding the Fourth Proportional to 3,729.57, 5,146.52 and 2,157.36

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Solution

The fourth proportional to 3,729.57, 5,146.52 and 2,157.36 is: 2,976.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.57 : 5,146.52 = 2,157.36 : x
  2. Step 2: Convert to fraction form
    3,729.57/5,146.52 = 2,157.36/x
  3. Step 3: Cross multiply
    3,729.57x = 5,146.52 × 2,157.36
  4. Step 4: Simplify right side
    3,729.57x = 11,102,885.60
  5. Step 5: Solve for x
    x = 11,102,885.60/3,729.57
  6. Step 6: Final answer
    x = 2,976.99

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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.