Home / 3,638.86-5,458.98-1,173.02

Finding the Fourth Proportional to 3,638.86, 5,458.98 and 1,173.02

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Solution

The fourth proportional to 3,638.86, 5,458.98 and 1,173.02 is: 1,759.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.86 : 5,458.98 = 1,173.02 : x
  2. Step 2: Convert to fraction form
    3,638.86/5,458.98 = 1,173.02/x
  3. Step 3: Cross multiply
    3,638.86x = 5,458.98 × 1,173.02
  4. Step 4: Simplify right side
    3,638.86x = 6,403,469.82
  5. Step 5: Solve for x
    x = 6,403,469.82/3,638.86
  6. Step 6: Final answer
    x = 1,759.75

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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.