Home / 2,679.92-4,012.40-2,433.38

Finding the Fourth Proportional to 2,679.92, 4,012.40 and 2,433.38

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Solution

The fourth proportional to 2,679.92, 4,012.40 and 2,433.38 is: 3,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.92 : 4,012.40 = 2,433.38 : x
  2. Step 2: Convert to fraction form
    2,679.92/4,012.40 = 2,433.38/x
  3. Step 3: Cross multiply
    2,679.92x = 4,012.40 × 2,433.38
  4. Step 4: Simplify right side
    2,679.92x = 9,763,693.91
  5. Step 5: Solve for x
    x = 9,763,693.91/2,679.92
  6. Step 6: Final answer
    x = 3,643.28

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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.