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Finding the Fourth Proportional to 3,874.46, 5,811.65 and 952.79

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Solution

The fourth proportional to 3,874.46, 5,811.65 and 952.79 is: 1,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.46 : 5,811.65 = 952.79 : x
  2. Step 2: Convert to fraction form
    3,874.46/5,811.65 = 952.79/x
  3. Step 3: Cross multiply
    3,874.46x = 5,811.65 × 952.79
  4. Step 4: Simplify right side
    3,874.46x = 5,537,277.24
  5. Step 5: Solve for x
    x = 5,537,277.24/3,874.46
  6. Step 6: Final answer
    x = 1,429.17

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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.