Home / 6,181.62-8,530.78-3,387.12

Finding the Fourth Proportional to 6,181.62, 8,530.78 and 3,387.12

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Solution

The fourth proportional to 6,181.62, 8,530.78 and 3,387.12 is: 4,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,181.62 : 8,530.78 = 3,387.12 : x
  2. Step 2: Convert to fraction form
    6,181.62/8,530.78 = 3,387.12/x
  3. Step 3: Cross multiply
    6,181.62x = 8,530.78 × 3,387.12
  4. Step 4: Simplify right side
    6,181.62x = 28,894,775.55
  5. Step 5: Solve for x
    x = 28,894,775.55/6,181.62
  6. Step 6: Final answer
    x = 4,674.30

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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.