Home / 3,246.28-4,479.59-1,986.80

Finding the Fourth Proportional to 3,246.28, 4,479.59 and 1,986.80

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Solution

The fourth proportional to 3,246.28, 4,479.59 and 1,986.80 is: 2,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.28 : 4,479.59 = 1,986.80 : x
  2. Step 2: Convert to fraction form
    3,246.28/4,479.59 = 1,986.80/x
  3. Step 3: Cross multiply
    3,246.28x = 4,479.59 × 1,986.80
  4. Step 4: Simplify right side
    3,246.28x = 8,900,031.98
  5. Step 5: Solve for x
    x = 8,900,031.98/3,246.28
  6. Step 6: Final answer
    x = 2,741.61

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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.