Home / 7,936.42-11,905.15-2,389.54

Finding the Fourth Proportional to 7,936.42, 11,905.15 and 2,389.54

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Solution

The fourth proportional to 7,936.42, 11,905.15 and 2,389.54 is: 3,584.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.42 : 11,905.15 = 2,389.54 : x
  2. Step 2: Convert to fraction form
    7,936.42/11,905.15 = 2,389.54/x
  3. Step 3: Cross multiply
    7,936.42x = 11,905.15 × 2,389.54
  4. Step 4: Simplify right side
    7,936.42x = 28,447,832.13
  5. Step 5: Solve for x
    x = 28,447,832.13/7,936.42
  6. Step 6: Final answer
    x = 3,584.47

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1.5x scale

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.