Home / 3,069.89-4,236.51-1,811.25

Finding the Fourth Proportional to 3,069.89, 4,236.51 and 1,811.25

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Solution

The fourth proportional to 3,069.89, 4,236.51 and 1,811.25 is: 2,499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.89 : 4,236.51 = 1,811.25 : x
  2. Step 2: Convert to fraction form
    3,069.89/4,236.51 = 1,811.25/x
  3. Step 3: Cross multiply
    3,069.89x = 4,236.51 × 1,811.25
  4. Step 4: Simplify right side
    3,069.89x = 7,673,359.45
  5. Step 5: Solve for x
    x = 7,673,359.45/3,069.89
  6. Step 6: Final answer
    x = 2,499.56

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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.