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Finding the Fourth Proportional to 3,772.85, 5,660.96 and 1,922.99

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Solution

The fourth proportional to 3,772.85, 5,660.96 and 1,922.99 is: 2,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.85 : 5,660.96 = 1,922.99 : x
  2. Step 2: Convert to fraction form
    3,772.85/5,660.96 = 1,922.99/x
  3. Step 3: Cross multiply
    3,772.85x = 5,660.96 × 1,922.99
  4. Step 4: Simplify right side
    3,772.85x = 10,885,931.55
  5. Step 5: Solve for x
    x = 10,885,931.55/3,772.85
  6. Step 6: Final answer
    x = 2,885.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.