Home / 5,716.59-7,890.12-3,723.59

Finding the Fourth Proportional to 5,716.59, 7,890.12 and 3,723.59

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Solution

The fourth proportional to 5,716.59, 7,890.12 and 3,723.59 is: 5,139.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.59 : 7,890.12 = 3,723.59 : x
  2. Step 2: Convert to fraction form
    5,716.59/7,890.12 = 3,723.59/x
  3. Step 3: Cross multiply
    5,716.59x = 7,890.12 × 3,723.59
  4. Step 4: Simplify right side
    5,716.59x = 29,379,571.93
  5. Step 5: Solve for x
    x = 29,379,571.93/5,716.59
  6. Step 6: Final answer
    x = 5,139.35

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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.