Home / 3,638.82-5,458.79-1,173.08

Finding the Fourth Proportional to 3,638.82, 5,458.79 and 1,173.08

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Solution

The fourth proportional to 3,638.82, 5,458.79 and 1,173.08 is: 1,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.82 : 5,458.79 = 1,173.08 : x
  2. Step 2: Convert to fraction form
    3,638.82/5,458.79 = 1,173.08/x
  3. Step 3: Cross multiply
    3,638.82x = 5,458.79 × 1,173.08
  4. Step 4: Simplify right side
    3,638.82x = 6,403,613.95
  5. Step 5: Solve for x
    x = 6,403,613.95/3,638.82
  6. Step 6: Final answer
    x = 1,759.80

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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.