Home / 3,209.40-4,814.04-2,660.43

Finding the Fourth Proportional to 3,209.40, 4,814.04 and 2,660.43

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Solution

The fourth proportional to 3,209.40, 4,814.04 and 2,660.43 is: 3,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.40 : 4,814.04 = 2,660.43 : x
  2. Step 2: Convert to fraction form
    3,209.40/4,814.04 = 2,660.43/x
  3. Step 3: Cross multiply
    3,209.40x = 4,814.04 × 2,660.43
  4. Step 4: Simplify right side
    3,209.40x = 12,807,416.44
  5. Step 5: Solve for x
    x = 12,807,416.44/3,209.40
  6. Step 6: Final answer
    x = 3,990.60

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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.