Home / 3,324.28-4,986.66-859.12

Finding the Fourth Proportional to 3,324.28, 4,986.66 and 859.12

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Solution

The fourth proportional to 3,324.28, 4,986.66 and 859.12 is: 1,288.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324.28 : 4,986.66 = 859.12 : x
  2. Step 2: Convert to fraction form
    3,324.28/4,986.66 = 859.12/x
  3. Step 3: Cross multiply
    3,324.28x = 4,986.66 × 859.12
  4. Step 4: Simplify right side
    3,324.28x = 4,284,139.34
  5. Step 5: Solve for x
    x = 4,284,139.34/3,324.28
  6. Step 6: Final answer
    x = 1,288.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.