Home / 7,087.18-10,631.04-3,620.38

Finding the Fourth Proportional to 7,087.18, 10,631.04 and 3,620.38

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Solution

The fourth proportional to 7,087.18, 10,631.04 and 3,620.38 is: 5,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.18 : 10,631.04 = 3,620.38 : x
  2. Step 2: Convert to fraction form
    7,087.18/10,631.04 = 3,620.38/x
  3. Step 3: Cross multiply
    7,087.18x = 10,631.04 × 3,620.38
  4. Step 4: Simplify right side
    7,087.18x = 38,488,404.60
  5. Step 5: Solve for x
    x = 38,488,404.60/7,087.18
  6. Step 6: Final answer
    x = 5,430.71

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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.