Home / 3,184.03-4,778.48-1,428.36

Finding the Fourth Proportional to 3,184.03, 4,778.48 and 1,428.36

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Solution

The fourth proportional to 3,184.03, 4,778.48 and 1,428.36 is: 2,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.03 : 4,778.48 = 1,428.36 : x
  2. Step 2: Convert to fraction form
    3,184.03/4,778.48 = 1,428.36/x
  3. Step 3: Cross multiply
    3,184.03x = 4,778.48 × 1,428.36
  4. Step 4: Simplify right side
    3,184.03x = 6,825,389.69
  5. Step 5: Solve for x
    x = 6,825,389.69/3,184.03
  6. Step 6: Final answer
    x = 2,143.63

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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.