Home / 3,071.27-4,606.88-1,221.89

Finding the Fourth Proportional to 3,071.27, 4,606.88 and 1,221.89

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Solution

The fourth proportional to 3,071.27, 4,606.88 and 1,221.89 is: 1,832.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.27 : 4,606.88 = 1,221.89 : x
  2. Step 2: Convert to fraction form
    3,071.27/4,606.88 = 1,221.89/x
  3. Step 3: Cross multiply
    3,071.27x = 4,606.88 × 1,221.89
  4. Step 4: Simplify right side
    3,071.27x = 5,629,080.62
  5. Step 5: Solve for x
    x = 5,629,080.62/3,071.27
  6. Step 6: Final answer
    x = 1,832.82

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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.