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Finding the Fourth Proportional to 3,994.99, 5,992.49 and 3,134.77

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Solution

The fourth proportional to 3,994.99, 5,992.49 and 3,134.77 is: 4,702.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.99 : 5,992.49 = 3,134.77 : x
  2. Step 2: Convert to fraction form
    3,994.99/5,992.49 = 3,134.77/x
  3. Step 3: Cross multiply
    3,994.99x = 5,992.49 × 3,134.77
  4. Step 4: Simplify right side
    3,994.99x = 18,785,062.20
  5. Step 5: Solve for x
    x = 18,785,062.20/3,994.99
  6. Step 6: Final answer
    x = 4,702.16

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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.