Home / 4,272.03-6,403.67-1,638.83

Finding the Fourth Proportional to 4,272.03, 6,403.67 and 1,638.83

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Solution

The fourth proportional to 4,272.03, 6,403.67 and 1,638.83 is: 2,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.03 : 6,403.67 = 1,638.83 : x
  2. Step 2: Convert to fraction form
    4,272.03/6,403.67 = 1,638.83/x
  3. Step 3: Cross multiply
    4,272.03x = 6,403.67 × 1,638.83
  4. Step 4: Simplify right side
    4,272.03x = 10,494,486.29
  5. Step 5: Solve for x
    x = 10,494,486.29/4,272.03
  6. Step 6: Final answer
    x = 2,456.56

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1.5x scale

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.