Home / 3,246.26-4,479-1,986.86

Finding the Fourth Proportional to 3,246.26, 4,479 and 1,986.86

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Solution

The fourth proportional to 3,246.26, 4,479 and 1,986.86 is: 2,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.26 : 4,479 = 1,986.86 : x
  2. Step 2: Convert to fraction form
    3,246.26/4,479 = 1,986.86/x
  3. Step 3: Cross multiply
    3,246.26x = 4,479 × 1,986.86
  4. Step 4: Simplify right side
    3,246.26x = 8,899,145.94
  5. Step 5: Solve for x
    x = 8,899,145.94/3,246.26
  6. Step 6: Final answer
    x = 2,741.35

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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.