Home / 7,490.43-11,236.56-3,105.51

Finding the Fourth Proportional to 7,490.43, 11,236.56 and 3,105.51

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Solution

The fourth proportional to 7,490.43, 11,236.56 and 3,105.51 is: 4,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.43 : 11,236.56 = 3,105.51 : x
  2. Step 2: Convert to fraction form
    7,490.43/11,236.56 = 3,105.51/x
  3. Step 3: Cross multiply
    7,490.43x = 11,236.56 × 3,105.51
  4. Step 4: Simplify right side
    7,490.43x = 34,895,249.45
  5. Step 5: Solve for x
    x = 34,895,249.45/7,490.43
  6. Step 6: Final answer
    x = 4,658.64

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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.