Home / 7,490.54-11,232.55-3,979.78

Finding the Fourth Proportional to 7,490.54, 11,232.55 and 3,979.78

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Solution

The fourth proportional to 7,490.54, 11,232.55 and 3,979.78 is: 5,967.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.54 : 11,232.55 = 3,979.78 : x
  2. Step 2: Convert to fraction form
    7,490.54/11,232.55 = 3,979.78/x
  3. Step 3: Cross multiply
    7,490.54x = 11,232.55 × 3,979.78
  4. Step 4: Simplify right side
    7,490.54x = 44,703,077.84
  5. Step 5: Solve for x
    x = 44,703,077.84/7,490.54
  6. Step 6: Final answer
    x = 5,967.94

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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.