Home / 7,490.38-11,236.74-3,331.84

Finding the Fourth Proportional to 7,490.38, 11,236.74 and 3,331.84

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Solution

The fourth proportional to 7,490.38, 11,236.74 and 3,331.84 is: 4,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.38 : 11,236.74 = 3,331.84 : x
  2. Step 2: Convert to fraction form
    7,490.38/11,236.74 = 3,331.84/x
  3. Step 3: Cross multiply
    7,490.38x = 11,236.74 × 3,331.84
  4. Step 4: Simplify right side
    7,490.38x = 37,439,019.80
  5. Step 5: Solve for x
    x = 37,439,019.80/7,490.38
  6. Step 6: Final answer
    x = 4,998.28

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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.