Home / 2,219.20-3,324.88-1,977.86

Finding the Fourth Proportional to 2,219.20, 3,324.88 and 1,977.86

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Solution

The fourth proportional to 2,219.20, 3,324.88 and 1,977.86 is: 2,963.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.20 : 3,324.88 = 1,977.86 : x
  2. Step 2: Convert to fraction form
    2,219.20/3,324.88 = 1,977.86/x
  3. Step 3: Cross multiply
    2,219.20x = 3,324.88 × 1,977.86
  4. Step 4: Simplify right side
    2,219.20x = 6,576,147.16
  5. Step 5: Solve for x
    x = 6,576,147.16/2,219.20
  6. Step 6: Final answer
    x = 2,963.30

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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.