Home / 3,509.29-5,265.94-1,428.91

Finding the Fourth Proportional to 3,509.29, 5,265.94 and 1,428.91

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Solution

The fourth proportional to 3,509.29, 5,265.94 and 1,428.91 is: 2,144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.29 : 5,265.94 = 1,428.91 : x
  2. Step 2: Convert to fraction form
    3,509.29/5,265.94 = 1,428.91/x
  3. Step 3: Cross multiply
    3,509.29x = 5,265.94 × 1,428.91
  4. Step 4: Simplify right side
    3,509.29x = 7,524,554.33
  5. Step 5: Solve for x
    x = 7,524,554.33/3,509.29
  6. Step 6: Final answer
    x = 2,144.18

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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.