Home / 7,108.07-10,662.11-2,945.30

Finding the Fourth Proportional to 7,108.07, 10,662.11 and 2,945.30

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Solution

The fourth proportional to 7,108.07, 10,662.11 and 2,945.30 is: 4,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.07 : 10,662.11 = 2,945.30 : x
  2. Step 2: Convert to fraction form
    7,108.07/10,662.11 = 2,945.30/x
  3. Step 3: Cross multiply
    7,108.07x = 10,662.11 × 2,945.30
  4. Step 4: Simplify right side
    7,108.07x = 31,403,072.16
  5. Step 5: Solve for x
    x = 31,403,072.16/7,108.07
  6. Step 6: Final answer
    x = 4,417.95

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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.