Home / 5,148.98-7,716.51-3,755.78

Finding the Fourth Proportional to 5,148.98, 7,716.51 and 3,755.78

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Solution

The fourth proportional to 5,148.98, 7,716.51 and 3,755.78 is: 5,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.98 : 7,716.51 = 3,755.78 : x
  2. Step 2: Convert to fraction form
    5,148.98/7,716.51 = 3,755.78/x
  3. Step 3: Cross multiply
    5,148.98x = 7,716.51 × 3,755.78
  4. Step 4: Simplify right side
    5,148.98x = 28,981,475.35
  5. Step 5: Solve for x
    x = 28,981,475.35/5,148.98
  6. Step 6: Final answer
    x = 5,628.59

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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.