Home / 2,636.36-3,951.41-1,228.89

Finding the Fourth Proportional to 2,636.36, 3,951.41 and 1,228.89

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Solution

The fourth proportional to 2,636.36, 3,951.41 and 1,228.89 is: 1,841.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.36 : 3,951.41 = 1,228.89 : x
  2. Step 2: Convert to fraction form
    2,636.36/3,951.41 = 1,228.89/x
  3. Step 3: Cross multiply
    2,636.36x = 3,951.41 × 1,228.89
  4. Step 4: Simplify right side
    2,636.36x = 4,855,842.09
  5. Step 5: Solve for x
    x = 4,855,842.09/2,636.36
  6. Step 6: Final answer
    x = 1,841.87

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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.