Home / 7,490.13-11,235.69-3,107.94

Finding the Fourth Proportional to 7,490.13, 11,235.69 and 3,107.94

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Solution

The fourth proportional to 7,490.13, 11,235.69 and 3,107.94 is: 4,662.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.13 : 11,235.69 = 3,107.94 : x
  2. Step 2: Convert to fraction form
    7,490.13/11,235.69 = 3,107.94/x
  3. Step 3: Cross multiply
    7,490.13x = 11,235.69 × 3,107.94
  4. Step 4: Simplify right side
    7,490.13x = 34,919,850.38
  5. Step 5: Solve for x
    x = 34,919,850.38/7,490.13
  6. Step 6: Final answer
    x = 4,662.12

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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.