Home / 5,716.49-8,540.09-3,619.70

Finding the Fourth Proportional to 5,716.49, 8,540.09 and 3,619.70

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Solution

The fourth proportional to 5,716.49, 8,540.09 and 3,619.70 is: 5,407.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.49 : 8,540.09 = 3,619.70 : x
  2. Step 2: Convert to fraction form
    5,716.49/8,540.09 = 3,619.70/x
  3. Step 3: Cross multiply
    5,716.49x = 8,540.09 × 3,619.70
  4. Step 4: Simplify right side
    5,716.49x = 30,912,548.57
  5. Step 5: Solve for x
    x = 30,912,548.57/5,716.49
  6. Step 6: Final answer
    x = 5,407.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.