Home / 3,428.30-5,142.69-1,454.36

Finding the Fourth Proportional to 3,428.30, 5,142.69 and 1,454.36

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Solution

The fourth proportional to 3,428.30, 5,142.69 and 1,454.36 is: 2,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.30 : 5,142.69 = 1,454.36 : x
  2. Step 2: Convert to fraction form
    3,428.30/5,142.69 = 1,454.36/x
  3. Step 3: Cross multiply
    3,428.30x = 5,142.69 × 1,454.36
  4. Step 4: Simplify right side
    3,428.30x = 7,479,296.91
  5. Step 5: Solve for x
    x = 7,479,296.91/3,428.30
  6. Step 6: Final answer
    x = 2,181.64

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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.