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Finding the Fourth Proportional to 3,850.70, 5,776.06 and 929.04

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Solution

The fourth proportional to 3,850.70, 5,776.06 and 929.04 is: 1,393.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.70 : 5,776.06 = 929.04 : x
  2. Step 2: Convert to fraction form
    3,850.70/5,776.06 = 929.04/x
  3. Step 3: Cross multiply
    3,850.70x = 5,776.06 × 929.04
  4. Step 4: Simplify right side
    3,850.70x = 5,366,190.78
  5. Step 5: Solve for x
    x = 5,366,190.78/3,850.70
  6. Step 6: Final answer
    x = 1,393.56

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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.