Home / 3,227.78-4,842.40-2,615.42

Finding the Fourth Proportional to 3,227.78, 4,842.40 and 2,615.42

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Solution

The fourth proportional to 3,227.78, 4,842.40 and 2,615.42 is: 3,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,227.78 : 4,842.40 = 2,615.42 : x
  2. Step 2: Convert to fraction form
    3,227.78/4,842.40 = 2,615.42/x
  3. Step 3: Cross multiply
    3,227.78x = 4,842.40 × 2,615.42
  4. Step 4: Simplify right side
    3,227.78x = 12,664,909.81
  5. Step 5: Solve for x
    x = 12,664,909.81/3,227.78
  6. Step 6: Final answer
    x = 3,923.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.