Home / 2,821.36-4,229.56-1,088.80

Finding the Fourth Proportional to 2,821.36, 4,229.56 and 1,088.80

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Solution

The fourth proportional to 2,821.36, 4,229.56 and 1,088.80 is: 1,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.36 : 4,229.56 = 1,088.80 : x
  2. Step 2: Convert to fraction form
    2,821.36/4,229.56 = 1,088.80/x
  3. Step 3: Cross multiply
    2,821.36x = 4,229.56 × 1,088.80
  4. Step 4: Simplify right side
    2,821.36x = 4,605,144.93
  5. Step 5: Solve for x
    x = 4,605,144.93/2,821.36
  6. Step 6: Final answer
    x = 1,632.24

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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.