Home / 2,212.19-3,052.64-1,267.75

Finding the Fourth Proportional to 2,212.19, 3,052.64 and 1,267.75

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Solution

The fourth proportional to 2,212.19, 3,052.64 and 1,267.75 is: 1,749.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.19 : 3,052.64 = 1,267.75 : x
  2. Step 2: Convert to fraction form
    2,212.19/3,052.64 = 1,267.75/x
  3. Step 3: Cross multiply
    2,212.19x = 3,052.64 × 1,267.75
  4. Step 4: Simplify right side
    2,212.19x = 3,869,984.36
  5. Step 5: Solve for x
    x = 3,869,984.36/2,212.19
  6. Step 6: Final answer
    x = 1,749.39

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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.