Home / 4,121.25-6,181.68-1,347.58

Finding the Fourth Proportional to 4,121.25, 6,181.68 and 1,347.58

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Solution

The fourth proportional to 4,121.25, 6,181.68 and 1,347.58 is: 2,021.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.25 : 6,181.68 = 1,347.58 : x
  2. Step 2: Convert to fraction form
    4,121.25/6,181.68 = 1,347.58/x
  3. Step 3: Cross multiply
    4,121.25x = 6,181.68 × 1,347.58
  4. Step 4: Simplify right side
    4,121.25x = 8,330,308.33
  5. Step 5: Solve for x
    x = 8,330,308.33/4,121.25
  6. Step 6: Final answer
    x = 2,021.31

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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.