Home / 2,689.20-4,033.80-2,332.80

Finding the Fourth Proportional to 2,689.20, 4,033.80 and 2,332.80

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Solution

The fourth proportional to 2,689.20, 4,033.80 and 2,332.80 is: 3,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.20 : 4,033.80 = 2,332.80 : x
  2. Step 2: Convert to fraction form
    2,689.20/4,033.80 = 2,332.80/x
  3. Step 3: Cross multiply
    2,689.20x = 4,033.80 × 2,332.80
  4. Step 4: Simplify right side
    2,689.20x = 9,410,048.64
  5. Step 5: Solve for x
    x = 9,410,048.64/2,689.20
  6. Step 6: Final answer
    x = 3,499.20

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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.