Home / 6,172.15-8,517.45-3,519.35

Finding the Fourth Proportional to 6,172.15, 8,517.45 and 3,519.35

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Solution

The fourth proportional to 6,172.15, 8,517.45 and 3,519.35 is: 4,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.15 : 8,517.45 = 3,519.35 : x
  2. Step 2: Convert to fraction form
    6,172.15/8,517.45 = 3,519.35/x
  3. Step 3: Cross multiply
    6,172.15x = 8,517.45 × 3,519.35
  4. Step 4: Simplify right side
    6,172.15x = 29,975,890.21
  5. Step 5: Solve for x
    x = 29,975,890.21/6,172.15
  6. Step 6: Final answer
    x = 4,856.64

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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.