Home / 5,478.91-8,216.20-2,359.15

Finding the Fourth Proportional to 5,478.91, 8,216.20 and 2,359.15

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Solution

The fourth proportional to 5,478.91, 8,216.20 and 2,359.15 is: 3,537.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.91 : 8,216.20 = 2,359.15 : x
  2. Step 2: Convert to fraction form
    5,478.91/8,216.20 = 2,359.15/x
  3. Step 3: Cross multiply
    5,478.91x = 8,216.20 × 2,359.15
  4. Step 4: Simplify right side
    5,478.91x = 19,383,195.35
  5. Step 5: Solve for x
    x = 19,383,195.35/5,478.91
  6. Step 6: Final answer
    x = 3,537.79

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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.