Home / 3,069.75-4,236.30-1,672.50

Finding the Fourth Proportional to 3,069.75, 4,236.30 and 1,672.50

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Solution

The fourth proportional to 3,069.75, 4,236.30 and 1,672.50 is: 2,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.75 : 4,236.30 = 1,672.50 : x
  2. Step 2: Convert to fraction form
    3,069.75/4,236.30 = 1,672.50/x
  3. Step 3: Cross multiply
    3,069.75x = 4,236.30 × 1,672.50
  4. Step 4: Simplify right side
    3,069.75x = 7,085,211.75
  5. Step 5: Solve for x
    x = 7,085,211.75/3,069.75
  6. Step 6: Final answer
    x = 2,308.07

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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.