Home / 3,220.29-4,829.61-1,272.51

Finding the Fourth Proportional to 3,220.29, 4,829.61 and 1,272.51

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Solution

The fourth proportional to 3,220.29, 4,829.61 and 1,272.51 is: 1,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.29 : 4,829.61 = 1,272.51 : x
  2. Step 2: Convert to fraction form
    3,220.29/4,829.61 = 1,272.51/x
  3. Step 3: Cross multiply
    3,220.29x = 4,829.61 × 1,272.51
  4. Step 4: Simplify right side
    3,220.29x = 6,145,727.02
  5. Step 5: Solve for x
    x = 6,145,727.02/3,220.29
  6. Step 6: Final answer
    x = 1,908.44

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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.