Home / 2,746.39-3,786.99-2,115.52

Finding the Fourth Proportional to 2,746.39, 3,786.99 and 2,115.52

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Solution

The fourth proportional to 2,746.39, 3,786.99 and 2,115.52 is: 2,917.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.39 : 3,786.99 = 2,115.52 : x
  2. Step 2: Convert to fraction form
    2,746.39/3,786.99 = 2,115.52/x
  3. Step 3: Cross multiply
    2,746.39x = 3,786.99 × 2,115.52
  4. Step 4: Simplify right side
    2,746.39x = 8,011,453.08
  5. Step 5: Solve for x
    x = 8,011,453.08/2,746.39
  6. Step 6: Final answer
    x = 2,917.09

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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.