Home / 3,209.58-4,811.46-1,261.26

Finding the Fourth Proportional to 3,209.58, 4,811.46 and 1,261.26

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Solution

The fourth proportional to 3,209.58, 4,811.46 and 1,261.26 is: 1,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.58 : 4,811.46 = 1,261.26 : x
  2. Step 2: Convert to fraction form
    3,209.58/4,811.46 = 1,261.26/x
  3. Step 3: Cross multiply
    3,209.58x = 4,811.46 × 1,261.26
  4. Step 4: Simplify right side
    3,209.58x = 6,068,502.04
  5. Step 5: Solve for x
    x = 6,068,502.04/3,209.58
  6. Step 6: Final answer
    x = 1,890.75

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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.