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Finding the Fourth Proportional to 6,172.52, 8,518.08 and 3,378.08

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Solution

The fourth proportional to 6,172.52, 8,518.08 and 3,378.08 is: 4,661.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.52 : 8,518.08 = 3,378.08 : x
  2. Step 2: Convert to fraction form
    6,172.52/8,518.08 = 3,378.08/x
  3. Step 3: Cross multiply
    6,172.52x = 8,518.08 × 3,378.08
  4. Step 4: Simplify right side
    6,172.52x = 28,774,755.69
  5. Step 5: Solve for x
    x = 28,774,755.69/6,172.52
  6. Step 6: Final answer
    x = 4,661.75

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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.