Home / 2,789.06-3,848.94-1,609.91

Finding the Fourth Proportional to 2,789.06, 3,848.94 and 1,609.91

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Solution

The fourth proportional to 2,789.06, 3,848.94 and 1,609.91 is: 2,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.06 : 3,848.94 = 1,609.91 : x
  2. Step 2: Convert to fraction form
    2,789.06/3,848.94 = 1,609.91/x
  3. Step 3: Cross multiply
    2,789.06x = 3,848.94 × 1,609.91
  4. Step 4: Simplify right side
    2,789.06x = 6,196,447.00
  5. Step 5: Solve for x
    x = 6,196,447.00/2,789.06
  6. Step 6: Final answer
    x = 2,221.70

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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.