Home / 7,755.40-11,634.86-2,490.78

Finding the Fourth Proportional to 7,755.40, 11,634.86 and 2,490.78

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Solution

The fourth proportional to 7,755.40, 11,634.86 and 2,490.78 is: 3,736.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.40 : 11,634.86 = 2,490.78 : x
  2. Step 2: Convert to fraction form
    7,755.40/11,634.86 = 2,490.78/x
  3. Step 3: Cross multiply
    7,755.40x = 11,634.86 × 2,490.78
  4. Step 4: Simplify right side
    7,755.40x = 28,979,876.59
  5. Step 5: Solve for x
    x = 28,979,876.59/7,755.40
  6. Step 6: Final answer
    x = 3,736.74

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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.