Home / 2,619.25-3,613.46-2,219.21

Finding the Fourth Proportional to 2,619.25, 3,613.46 and 2,219.21

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Solution

The fourth proportional to 2,619.25, 3,613.46 and 2,219.21 is: 3,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.25 : 3,613.46 = 2,219.21 : x
  2. Step 2: Convert to fraction form
    2,619.25/3,613.46 = 2,219.21/x
  3. Step 3: Cross multiply
    2,619.25x = 3,613.46 × 2,219.21
  4. Step 4: Simplify right side
    2,619.25x = 8,019,024.50
  5. Step 5: Solve for x
    x = 8,019,024.50/2,619.25
  6. Step 6: Final answer
    x = 3,061.57

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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.