Home / 6,428.80-9,643.92-2,044.72

Finding the Fourth Proportional to 6,428.80, 9,643.92 and 2,044.72

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Solution

The fourth proportional to 6,428.80, 9,643.92 and 2,044.72 is: 3,067.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.80 : 9,643.92 = 2,044.72 : x
  2. Step 2: Convert to fraction form
    6,428.80/9,643.92 = 2,044.72/x
  3. Step 3: Cross multiply
    6,428.80x = 9,643.92 × 2,044.72
  4. Step 4: Simplify right side
    6,428.80x = 19,719,116.10
  5. Step 5: Solve for x
    x = 19,719,116.10/6,428.80
  6. Step 6: Final answer
    x = 3,067.31

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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.