Home / 5,518.48-8,271.12-3,179.56

Finding the Fourth Proportional to 5,518.48, 8,271.12 and 3,179.56

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Solution

The fourth proportional to 5,518.48, 8,271.12 and 3,179.56 is: 4,765.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.48 : 8,271.12 = 3,179.56 : x
  2. Step 2: Convert to fraction form
    5,518.48/8,271.12 = 3,179.56/x
  3. Step 3: Cross multiply
    5,518.48x = 8,271.12 × 3,179.56
  4. Step 4: Simplify right side
    5,518.48x = 26,298,522.31
  5. Step 5: Solve for x
    x = 26,298,522.31/5,518.48
  6. Step 6: Final answer
    x = 4,765.54

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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.