Home / 3,104.37-4,283.55-1,986.30

Finding the Fourth Proportional to 3,104.37, 4,283.55 and 1,986.30

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Solution

The fourth proportional to 3,104.37, 4,283.55 and 1,986.30 is: 2,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.37 : 4,283.55 = 1,986.30 : x
  2. Step 2: Convert to fraction form
    3,104.37/4,283.55 = 1,986.30/x
  3. Step 3: Cross multiply
    3,104.37x = 4,283.55 × 1,986.30
  4. Step 4: Simplify right side
    3,104.37x = 8,508,415.37
  5. Step 5: Solve for x
    x = 8,508,415.37/3,104.37
  6. Step 6: Final answer
    x = 2,740.79

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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.