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Finding the Fourth Proportional to 7,249.50, 10,004.31 and 4,105.89

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Solution

The fourth proportional to 7,249.50, 10,004.31 and 4,105.89 is: 5,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.50 : 10,004.31 = 4,105.89 : x
  2. Step 2: Convert to fraction form
    7,249.50/10,004.31 = 4,105.89/x
  3. Step 3: Cross multiply
    7,249.50x = 10,004.31 × 4,105.89
  4. Step 4: Simplify right side
    7,249.50x = 41,076,596.39
  5. Step 5: Solve for x
    x = 41,076,596.39/7,249.50
  6. Step 6: Final answer
    x = 5,666.13

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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.