Home / 3,209.09-4,428.50-1,792.81

Finding the Fourth Proportional to 3,209.09, 4,428.50 and 1,792.81

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Solution

The fourth proportional to 3,209.09, 4,428.50 and 1,792.81 is: 2,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.09 : 4,428.50 = 1,792.81 : x
  2. Step 2: Convert to fraction form
    3,209.09/4,428.50 = 1,792.81/x
  3. Step 3: Cross multiply
    3,209.09x = 4,428.50 × 1,792.81
  4. Step 4: Simplify right side
    3,209.09x = 7,939,436.94
  5. Step 5: Solve for x
    x = 7,939,436.94/3,209.09
  6. Step 6: Final answer
    x = 2,474.05

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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.