Home / 3,069.28-4,236.66-1,890.64

Finding the Fourth Proportional to 3,069.28, 4,236.66 and 1,890.64

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Solution

The fourth proportional to 3,069.28, 4,236.66 and 1,890.64 is: 2,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.28 : 4,236.66 = 1,890.64 : x
  2. Step 2: Convert to fraction form
    3,069.28/4,236.66 = 1,890.64/x
  3. Step 3: Cross multiply
    3,069.28x = 4,236.66 × 1,890.64
  4. Step 4: Simplify right side
    3,069.28x = 8,009,998.86
  5. Step 5: Solve for x
    x = 8,009,998.86/3,069.28
  6. Step 6: Final answer
    x = 2,609.73

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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.