Home / 6,172.92-8,518.38-3,378.42

Finding the Fourth Proportional to 6,172.92, 8,518.38 and 3,378.42

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Solution

The fourth proportional to 6,172.92, 8,518.38 and 3,378.42 is: 4,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.92 : 8,518.38 = 3,378.42 : x
  2. Step 2: Convert to fraction form
    6,172.92/8,518.38 = 3,378.42/x
  3. Step 3: Cross multiply
    6,172.92x = 8,518.38 × 3,378.42
  4. Step 4: Simplify right side
    6,172.92x = 28,778,665.36
  5. Step 5: Solve for x
    x = 28,778,665.36/6,172.92
  6. Step 6: Final answer
    x = 4,662.08

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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.