Home / 5,530.34-7,631.91-3,291.78

Finding the Fourth Proportional to 5,530.34, 7,631.91 and 3,291.78

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Solution

The fourth proportional to 5,530.34, 7,631.91 and 3,291.78 is: 4,542.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.34 : 7,631.91 = 3,291.78 : x
  2. Step 2: Convert to fraction form
    5,530.34/7,631.91 = 3,291.78/x
  3. Step 3: Cross multiply
    5,530.34x = 7,631.91 × 3,291.78
  4. Step 4: Simplify right side
    5,530.34x = 25,122,539.03
  5. Step 5: Solve for x
    x = 25,122,539.03/5,530.34
  6. Step 6: Final answer
    x = 4,542.68

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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.