Home / 3,209.09-4,428.54-1,882.80

Finding the Fourth Proportional to 3,209.09, 4,428.54 and 1,882.80

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Solution

The fourth proportional to 3,209.09, 4,428.54 and 1,882.80 is: 2,598.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.09 : 4,428.54 = 1,882.80 : x
  2. Step 2: Convert to fraction form
    3,209.09/4,428.54 = 1,882.80/x
  3. Step 3: Cross multiply
    3,209.09x = 4,428.54 × 1,882.80
  4. Step 4: Simplify right side
    3,209.09x = 8,338,055.11
  5. Step 5: Solve for x
    x = 8,338,055.11/3,209.09
  6. Step 6: Final answer
    x = 2,598.27

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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.