Home / 5,530.88-7,631.72-3,172.58

Finding the Fourth Proportional to 5,530.88, 7,631.72 and 3,172.58

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Solution

The fourth proportional to 5,530.88, 7,631.72 and 3,172.58 is: 4,377.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.88 : 7,631.72 = 3,172.58 : x
  2. Step 2: Convert to fraction form
    5,530.88/7,631.72 = 3,172.58/x
  3. Step 3: Cross multiply
    5,530.88x = 7,631.72 × 3,172.58
  4. Step 4: Simplify right side
    5,530.88x = 24,212,242.24
  5. Step 5: Solve for x
    x = 24,212,242.24/5,530.88
  6. Step 6: Final answer
    x = 4,377.65

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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.