Home / 2,643.72-3,963.14-2,425.02

Finding the Fourth Proportional to 2,643.72, 3,963.14 and 2,425.02

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Solution

The fourth proportional to 2,643.72, 3,963.14 and 2,425.02 is: 3,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.72 : 3,963.14 = 2,425.02 : x
  2. Step 2: Convert to fraction form
    2,643.72/3,963.14 = 2,425.02/x
  3. Step 3: Cross multiply
    2,643.72x = 3,963.14 × 2,425.02
  4. Step 4: Simplify right side
    2,643.72x = 9,610,693.76
  5. Step 5: Solve for x
    x = 9,610,693.76/2,643.72
  6. Step 6: Final answer
    x = 3,635.29

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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.