Home / 5,518.08-8,257.68-4,209.12

Finding the Fourth Proportional to 5,518.08, 8,257.68 and 4,209.12

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Solution

The fourth proportional to 5,518.08, 8,257.68 and 4,209.12 is: 6,298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.08 : 8,257.68 = 4,209.12 : x
  2. Step 2: Convert to fraction form
    5,518.08/8,257.68 = 4,209.12/x
  3. Step 3: Cross multiply
    5,518.08x = 8,257.68 × 4,209.12
  4. Step 4: Simplify right side
    5,518.08x = 34,757,566.04
  5. Step 5: Solve for x
    x = 34,757,566.04/5,518.08
  6. Step 6: Final answer
    x = 6,298.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.