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Finding the Fourth Proportional to 7,133.49, 9,845.77 and 4,149.72

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Solution

The fourth proportional to 7,133.49, 9,845.77 and 4,149.72 is: 5,727.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.49 : 9,845.77 = 4,149.72 : x
  2. Step 2: Convert to fraction form
    7,133.49/9,845.77 = 4,149.72/x
  3. Step 3: Cross multiply
    7,133.49x = 9,845.77 × 4,149.72
  4. Step 4: Simplify right side
    7,133.49x = 40,857,181.00
  5. Step 5: Solve for x
    x = 40,857,181.00/7,133.49
  6. Step 6: Final answer
    x = 5,727.51

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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.