Home / 7,485.42-11,236.32-3,105.93

Finding the Fourth Proportional to 7,485.42, 11,236.32 and 3,105.93

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Solution

The fourth proportional to 7,485.42, 11,236.32 and 3,105.93 is: 4,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.42 : 11,236.32 = 3,105.93 : x
  2. Step 2: Convert to fraction form
    7,485.42/11,236.32 = 3,105.93/x
  3. Step 3: Cross multiply
    7,485.42x = 11,236.32 × 3,105.93
  4. Step 4: Simplify right side
    7,485.42x = 34,899,223.38
  5. Step 5: Solve for x
    x = 34,899,223.38/7,485.42
  6. Step 6: Final answer
    x = 4,662.29

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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.