Home / 5,530.16-7,631.52-3,172.40

Finding the Fourth Proportional to 5,530.16, 7,631.52 and 3,172.40

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Solution

The fourth proportional to 5,530.16, 7,631.52 and 3,172.40 is: 4,377.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.16 : 7,631.52 = 3,172.40 : x
  2. Step 2: Convert to fraction form
    5,530.16/7,631.52 = 3,172.40/x
  3. Step 3: Cross multiply
    5,530.16x = 7,631.52 × 3,172.40
  4. Step 4: Simplify right side
    5,530.16x = 24,210,234.05
  5. Step 5: Solve for x
    x = 24,210,234.05/5,530.16
  6. Step 6: Final answer
    x = 4,377.85

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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.