Home / 7,936.89-11,905.46-2,390.49

Finding the Fourth Proportional to 7,936.89, 11,905.46 and 2,390.49

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Solution

The fourth proportional to 7,936.89, 11,905.46 and 2,390.49 is: 3,585.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.89 : 11,905.46 = 2,390.49 : x
  2. Step 2: Convert to fraction form
    7,936.89/11,905.46 = 2,390.49/x
  3. Step 3: Cross multiply
    7,936.89x = 11,905.46 × 2,390.49
  4. Step 4: Simplify right side
    7,936.89x = 28,459,883.08
  5. Step 5: Solve for x
    x = 28,459,883.08/7,936.89
  6. Step 6: Final answer
    x = 3,585.77

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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.