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Finding the Fourth Proportional to 3,712.56, 5,560.93 and 2,786.73

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Solution

The fourth proportional to 3,712.56, 5,560.93 and 2,786.73 is: 4,174.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.56 : 5,560.93 = 2,786.73 : x
  2. Step 2: Convert to fraction form
    3,712.56/5,560.93 = 2,786.73/x
  3. Step 3: Cross multiply
    3,712.56x = 5,560.93 × 2,786.73
  4. Step 4: Simplify right side
    3,712.56x = 15,496,810.46
  5. Step 5: Solve for x
    x = 15,496,810.46/3,712.56
  6. Step 6: Final answer
    x = 4,174.16

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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.