Home / 2,511.20-3,759.60-2,223.20

Finding the Fourth Proportional to 2,511.20, 3,759.60 and 2,223.20

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Solution

The fourth proportional to 2,511.20, 3,759.60 and 2,223.20 is: 3,328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.20 : 3,759.60 = 2,223.20 : x
  2. Step 2: Convert to fraction form
    2,511.20/3,759.60 = 2,223.20/x
  3. Step 3: Cross multiply
    2,511.20x = 3,759.60 × 2,223.20
  4. Step 4: Simplify right side
    2,511.20x = 8,358,342.72
  5. Step 5: Solve for x
    x = 8,358,342.72/2,511.20
  6. Step 6: Final answer
    x = 3,328.43

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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.