Home / 2,789.20-3,848.96-1,610.65

Finding the Fourth Proportional to 2,789.20, 3,848.96 and 1,610.65

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Solution

The fourth proportional to 2,789.20, 3,848.96 and 1,610.65 is: 2,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.20 : 3,848.96 = 1,610.65 : x
  2. Step 2: Convert to fraction form
    2,789.20/3,848.96 = 1,610.65/x
  3. Step 3: Cross multiply
    2,789.20x = 3,848.96 × 1,610.65
  4. Step 4: Simplify right side
    2,789.20x = 6,199,327.42
  5. Step 5: Solve for x
    x = 6,199,327.42/2,789.20
  6. Step 6: Final answer
    x = 2,222.62

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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.