Home / 4,425.37-6,638.43-1,138.43

Finding the Fourth Proportional to 4,425.37, 6,638.43 and 1,138.43

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Solution

The fourth proportional to 4,425.37, 6,638.43 and 1,138.43 is: 1,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.37 : 6,638.43 = 1,138.43 : x
  2. Step 2: Convert to fraction form
    4,425.37/6,638.43 = 1,138.43/x
  3. Step 3: Cross multiply
    4,425.37x = 6,638.43 × 1,138.43
  4. Step 4: Simplify right side
    4,425.37x = 7,557,387.86
  5. Step 5: Solve for x
    x = 7,557,387.86/4,425.37
  6. Step 6: Final answer
    x = 1,707.74

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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.