Home / 5,115.38-7,671.00-1,994.93

Finding the Fourth Proportional to 5,115.38, 7,671.00 and 1,994.93

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Solution

The fourth proportional to 5,115.38, 7,671.00 and 1,994.93 is: 2,991.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.38 : 7,671.00 = 1,994.93 : x
  2. Step 2: Convert to fraction form
    5,115.38/7,671.00 = 1,994.93/x
  3. Step 3: Cross multiply
    5,115.38x = 7,671.00 × 1,994.93
  4. Step 4: Simplify right side
    5,115.38x = 15,303,105.92
  5. Step 5: Solve for x
    x = 15,303,105.92/5,115.38
  6. Step 6: Final answer
    x = 2,991.59

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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.