Home / 7,420.97-11,134.10-2,490.60

Finding the Fourth Proportional to 7,420.97, 11,134.10 and 2,490.60

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Solution

The fourth proportional to 7,420.97, 11,134.10 and 2,490.60 is: 3,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.97 : 11,134.10 = 2,490.60 : x
  2. Step 2: Convert to fraction form
    7,420.97/11,134.10 = 2,490.60/x
  3. Step 3: Cross multiply
    7,420.97x = 11,134.10 × 2,490.60
  4. Step 4: Simplify right side
    7,420.97x = 27,730,589.46
  5. Step 5: Solve for x
    x = 27,730,589.46/7,420.97
  6. Step 6: Final answer
    x = 3,736.79

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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.