Home / 5,515.70-8,257.14-3,660.39

Finding the Fourth Proportional to 5,515.70, 8,257.14 and 3,660.39

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Solution

The fourth proportional to 5,515.70, 8,257.14 and 3,660.39 is: 5,479.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.70 : 8,257.14 = 3,660.39 : x
  2. Step 2: Convert to fraction form
    5,515.70/8,257.14 = 3,660.39/x
  3. Step 3: Cross multiply
    5,515.70x = 8,257.14 × 3,660.39
  4. Step 4: Simplify right side
    5,515.70x = 30,224,352.68
  5. Step 5: Solve for x
    x = 30,224,352.68/5,515.70
  6. Step 6: Final answer
    x = 5,479.70

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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.