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Finding the Fourth Proportional to 5,518.88, 8,270.22 and 4,125.68

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Solution

The fourth proportional to 5,518.88, 8,270.22 and 4,125.68 is: 6,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.88 : 8,270.22 = 4,125.68 : x
  2. Step 2: Convert to fraction form
    5,518.88/8,270.22 = 4,125.68/x
  3. Step 3: Cross multiply
    5,518.88x = 8,270.22 × 4,125.68
  4. Step 4: Simplify right side
    5,518.88x = 34,120,281.25
  5. Step 5: Solve for x
    x = 34,120,281.25/5,518.88
  6. Step 6: Final answer
    x = 6,182.46

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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.