Home / 7,184.47-9,914.49-3,997.75

Finding the Fourth Proportional to 7,184.47, 9,914.49 and 3,997.75

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Solution

The fourth proportional to 7,184.47, 9,914.49 and 3,997.75 is: 5,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,184.47 : 9,914.49 = 3,997.75 : x
  2. Step 2: Convert to fraction form
    7,184.47/9,914.49 = 3,997.75/x
  3. Step 3: Cross multiply
    7,184.47x = 9,914.49 × 3,997.75
  4. Step 4: Simplify right side
    7,184.47x = 39,635,652.40
  5. Step 5: Solve for x
    x = 39,635,652.40/7,184.47
  6. Step 6: Final answer
    x = 5,516.85

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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.