Home / 3,729.84-5,146.90-2,157.63

Finding the Fourth Proportional to 3,729.84, 5,146.90 and 2,157.63

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Solution

The fourth proportional to 3,729.84, 5,146.90 and 2,157.63 is: 2,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.84 : 5,146.90 = 2,157.63 : x
  2. Step 2: Convert to fraction form
    3,729.84/5,146.90 = 2,157.63/x
  3. Step 3: Cross multiply
    3,729.84x = 5,146.90 × 2,157.63
  4. Step 4: Simplify right side
    3,729.84x = 11,105,105.85
  5. Step 5: Solve for x
    x = 11,105,105.85/3,729.84
  6. Step 6: Final answer
    x = 2,977.37

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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.