Home / 5,518.73-7,610.66-4,257.78

Finding the Fourth Proportional to 5,518.73, 7,610.66 and 4,257.78

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Solution

The fourth proportional to 5,518.73, 7,610.66 and 4,257.78 is: 5,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.73 : 7,610.66 = 4,257.78 : x
  2. Step 2: Convert to fraction form
    5,518.73/7,610.66 = 4,257.78/x
  3. Step 3: Cross multiply
    5,518.73x = 7,610.66 × 4,257.78
  4. Step 4: Simplify right side
    5,518.73x = 32,404,524.88
  5. Step 5: Solve for x
    x = 32,404,524.88/5,518.73
  6. Step 6: Final answer
    x = 5,871.74

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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.