Home / 5,515.90-8,276.46-2,231.26

Finding the Fourth Proportional to 5,515.90, 8,276.46 and 2,231.26

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Solution

The fourth proportional to 5,515.90, 8,276.46 and 2,231.26 is: 3,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.90 : 8,276.46 = 2,231.26 : x
  2. Step 2: Convert to fraction form
    5,515.90/8,276.46 = 2,231.26/x
  3. Step 3: Cross multiply
    5,515.90x = 8,276.46 × 2,231.26
  4. Step 4: Simplify right side
    5,515.90x = 18,466,934.14
  5. Step 5: Solve for x
    x = 18,466,934.14/5,515.90
  6. Step 6: Final answer
    x = 3,347.95

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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.