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Finding the Fourth Proportional to 7,208.36, 9,939.49 and 5,910.89

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Solution

The fourth proportional to 7,208.36, 9,939.49 and 5,910.89 is: 8,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.36 : 9,939.49 = 5,910.89 : x
  2. Step 2: Convert to fraction form
    7,208.36/9,939.49 = 5,910.89/x
  3. Step 3: Cross multiply
    7,208.36x = 9,939.49 × 5,910.89
  4. Step 4: Simplify right side
    7,208.36x = 58,751,182.35
  5. Step 5: Solve for x
    x = 58,751,182.35/7,208.36
  6. Step 6: Final answer
    x = 8,150.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.