Home / 4,425.64-6,638.81-1,791.90

Finding the Fourth Proportional to 4,425.64, 6,638.81 and 1,791.90

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Solution

The fourth proportional to 4,425.64, 6,638.81 and 1,791.90 is: 2,687.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.64 : 6,638.81 = 1,791.90 : x
  2. Step 2: Convert to fraction form
    4,425.64/6,638.81 = 1,791.90/x
  3. Step 3: Cross multiply
    4,425.64x = 6,638.81 × 1,791.90
  4. Step 4: Simplify right side
    4,425.64x = 11,896,081.40
  5. Step 5: Solve for x
    x = 11,896,081.40/4,425.64
  6. Step 6: Final answer
    x = 2,687.99

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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.