Home / 5,518.38-7,615.39-3,279.82

Finding the Fourth Proportional to 5,518.38, 7,615.39 and 3,279.82

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Solution

The fourth proportional to 5,518.38, 7,615.39 and 3,279.82 is: 4,526.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.38 : 7,615.39 = 3,279.82 : x
  2. Step 2: Convert to fraction form
    5,518.38/7,615.39 = 3,279.82/x
  3. Step 3: Cross multiply
    5,518.38x = 7,615.39 × 3,279.82
  4. Step 4: Simplify right side
    5,518.38x = 24,977,089.43
  5. Step 5: Solve for x
    x = 24,977,089.43/5,518.38
  6. Step 6: Final answer
    x = 4,526.16

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Half scale
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Double scale
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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.