Home / 3,115.14-4,295.00-1,994.24

Finding the Fourth Proportional to 3,115.14, 4,295.00 and 1,994.24

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Solution

The fourth proportional to 3,115.14, 4,295.00 and 1,994.24 is: 2,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.14 : 4,295.00 = 1,994.24 : x
  2. Step 2: Convert to fraction form
    3,115.14/4,295.00 = 1,994.24/x
  3. Step 3: Cross multiply
    3,115.14x = 4,295.00 × 1,994.24
  4. Step 4: Simplify right side
    3,115.14x = 8,565,229.35
  5. Step 5: Solve for x
    x = 8,565,229.35/3,115.14
  6. Step 6: Final answer
    x = 2,749.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.