Home / 3,069.80-4,236.34-1,672.55

Finding the Fourth Proportional to 3,069.80, 4,236.34 and 1,672.55

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Solution

The fourth proportional to 3,069.80, 4,236.34 and 1,672.55 is: 2,308.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.80 : 4,236.34 = 1,672.55 : x
  2. Step 2: Convert to fraction form
    3,069.80/4,236.34 = 1,672.55/x
  3. Step 3: Cross multiply
    3,069.80x = 4,236.34 × 1,672.55
  4. Step 4: Simplify right side
    3,069.80x = 7,085,469.29
  5. Step 5: Solve for x
    x = 7,085,469.29/3,069.80
  6. Step 6: Final answer
    x = 2,308.12

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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.