Home / 6,168.05-8,511.38-3,515.40

Finding the Fourth Proportional to 6,168.05, 8,511.38 and 3,515.40

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Solution

The fourth proportional to 6,168.05, 8,511.38 and 3,515.40 is: 4,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,168.05 : 8,511.38 = 3,515.40 : x
  2. Step 2: Convert to fraction form
    6,168.05/8,511.38 = 3,515.40/x
  3. Step 3: Cross multiply
    6,168.05x = 8,511.38 × 3,515.40
  4. Step 4: Simplify right side
    6,168.05x = 29,920,900.86
  5. Step 5: Solve for x
    x = 29,920,900.86/6,168.05
  6. Step 6: Final answer
    x = 4,850.95

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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.