Home / 3,106.00-4,286.98-2,113.64

Finding the Fourth Proportional to 3,106.00, 4,286.98 and 2,113.64

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Solution

The fourth proportional to 3,106.00, 4,286.98 and 2,113.64 is: 2,917.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.00 : 4,286.98 = 2,113.64 : x
  2. Step 2: Convert to fraction form
    3,106.00/4,286.98 = 2,113.64/x
  3. Step 3: Cross multiply
    3,106.00x = 4,286.98 × 2,113.64
  4. Step 4: Simplify right side
    3,106.00x = 9,061,141.92
  5. Step 5: Solve for x
    x = 9,061,141.92/3,106.00
  6. Step 6: Final answer
    x = 2,917.31

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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.