Home / 6,172.54-8,518.11-3,378.04

Finding the Fourth Proportional to 6,172.54, 8,518.11 and 3,378.04

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Solution

The fourth proportional to 6,172.54, 8,518.11 and 3,378.04 is: 4,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.54 : 8,518.11 = 3,378.04 : x
  2. Step 2: Convert to fraction form
    6,172.54/8,518.11 = 3,378.04/x
  3. Step 3: Cross multiply
    6,172.54x = 8,518.11 × 3,378.04
  4. Step 4: Simplify right side
    6,172.54x = 28,774,516.30
  5. Step 5: Solve for x
    x = 28,774,516.30/6,172.54
  6. Step 6: Final answer
    x = 4,661.70

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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.