Home / 7,716.42-10,648.77-4,179.66

Finding the Fourth Proportional to 7,716.42, 10,648.77 and 4,179.66

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Solution

The fourth proportional to 7,716.42, 10,648.77 and 4,179.66 is: 5,767.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.42 : 10,648.77 = 4,179.66 : x
  2. Step 2: Convert to fraction form
    7,716.42/10,648.77 = 4,179.66/x
  3. Step 3: Cross multiply
    7,716.42x = 10,648.77 × 4,179.66
  4. Step 4: Simplify right side
    7,716.42x = 44,508,238.02
  5. Step 5: Solve for x
    x = 44,508,238.02/7,716.42
  6. Step 6: Final answer
    x = 5,767.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.