Home / 7,690.44-11,516.76-4,908.90

Finding the Fourth Proportional to 7,690.44, 11,516.76 and 4,908.90

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Solution

The fourth proportional to 7,690.44, 11,516.76 and 4,908.90 is: 7,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.44 : 11,516.76 = 4,908.90 : x
  2. Step 2: Convert to fraction form
    7,690.44/11,516.76 = 4,908.90/x
  3. Step 3: Cross multiply
    7,690.44x = 11,516.76 × 4,908.90
  4. Step 4: Simplify right side
    7,690.44x = 56,534,623.16
  5. Step 5: Solve for x
    x = 56,534,623.16/7,690.44
  6. Step 6: Final answer
    x = 7,351.29

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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.