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Finding the Fourth Proportional to 3,886.43, 5,829.70 and 964.73

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Solution

The fourth proportional to 3,886.43, 5,829.70 and 964.73 is: 1,447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.43 : 5,829.70 = 964.73 : x
  2. Step 2: Convert to fraction form
    3,886.43/5,829.70 = 964.73/x
  3. Step 3: Cross multiply
    3,886.43x = 5,829.70 × 964.73
  4. Step 4: Simplify right side
    3,886.43x = 5,624,081.66
  5. Step 5: Solve for x
    x = 5,624,081.66/3,886.43
  6. Step 6: Final answer
    x = 1,447.11

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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.