Home / 7,936.96-11,905.41-2,390.71

Finding the Fourth Proportional to 7,936.96, 11,905.41 and 2,390.71

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Solution

The fourth proportional to 7,936.96, 11,905.41 and 2,390.71 is: 3,586.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.96 : 11,905.41 = 2,390.71 : x
  2. Step 2: Convert to fraction form
    7,936.96/11,905.41 = 2,390.71/x
  3. Step 3: Cross multiply
    7,936.96x = 11,905.41 × 2,390.71
  4. Step 4: Simplify right side
    7,936.96x = 28,462,323.21
  5. Step 5: Solve for x
    x = 28,462,323.21/7,936.96
  6. Step 6: Final answer
    x = 3,586.05

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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.