Home / 3,076.57-4,245.69-1,679.33

Finding the Fourth Proportional to 3,076.57, 4,245.69 and 1,679.33

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Solution

The fourth proportional to 3,076.57, 4,245.69 and 1,679.33 is: 2,317.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.57 : 4,245.69 = 1,679.33 : x
  2. Step 2: Convert to fraction form
    3,076.57/4,245.69 = 1,679.33/x
  3. Step 3: Cross multiply
    3,076.57x = 4,245.69 × 1,679.33
  4. Step 4: Simplify right side
    3,076.57x = 7,129,906.19
  5. Step 5: Solve for x
    x = 7,129,906.19/3,076.57
  6. Step 6: Final answer
    x = 2,317.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.