Home / 2,788.92-3,848.76-1,609.92

Finding the Fourth Proportional to 2,788.92, 3,848.76 and 1,609.92

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Solution

The fourth proportional to 2,788.92, 3,848.76 and 1,609.92 is: 2,221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.92 : 3,848.76 = 1,609.92 : x
  2. Step 2: Convert to fraction form
    2,788.92/3,848.76 = 1,609.92/x
  3. Step 3: Cross multiply
    2,788.92x = 3,848.76 × 1,609.92
  4. Step 4: Simplify right side
    2,788.92x = 6,196,195.70
  5. Step 5: Solve for x
    x = 6,196,195.70/2,788.92
  6. Step 6: Final answer
    x = 2,221.72

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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.