Home / 2,829.20-4,243.32-880.88

Finding the Fourth Proportional to 2,829.20, 4,243.32 and 880.88

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Solution

The fourth proportional to 2,829.20, 4,243.32 and 880.88 is: 1,321.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.20 : 4,243.32 = 880.88 : x
  2. Step 2: Convert to fraction form
    2,829.20/4,243.32 = 880.88/x
  3. Step 3: Cross multiply
    2,829.20x = 4,243.32 × 880.88
  4. Step 4: Simplify right side
    2,829.20x = 3,737,834.51
  5. Step 5: Solve for x
    x = 3,737,834.51/2,829.20
  6. Step 6: Final answer
    x = 1,321.17

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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.