Home / 2,269.20-3,403.80-2,107.20

Finding the Fourth Proportional to 2,269.20, 3,403.80 and 2,107.20

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Solution

The fourth proportional to 2,269.20, 3,403.80 and 2,107.20 is: 3,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.20 : 3,403.80 = 2,107.20 : x
  2. Step 2: Convert to fraction form
    2,269.20/3,403.80 = 2,107.20/x
  3. Step 3: Cross multiply
    2,269.20x = 3,403.80 × 2,107.20
  4. Step 4: Simplify right side
    2,269.20x = 7,172,487.36
  5. Step 5: Solve for x
    x = 7,172,487.36/2,269.20
  6. Step 6: Final answer
    x = 3,160.80

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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.