Home / 3,208.81-4,429.47-2,029.69

Finding the Fourth Proportional to 3,208.81, 4,429.47 and 2,029.69

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Solution

The fourth proportional to 3,208.81, 4,429.47 and 2,029.69 is: 2,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.81 : 4,429.47 = 2,029.69 : x
  2. Step 2: Convert to fraction form
    3,208.81/4,429.47 = 2,029.69/x
  3. Step 3: Cross multiply
    3,208.81x = 4,429.47 × 2,029.69
  4. Step 4: Simplify right side
    3,208.81x = 8,990,450.96
  5. Step 5: Solve for x
    x = 8,990,450.96/3,208.81
  6. Step 6: Final answer
    x = 2,801.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.