Home / 2,212.81-3,054.99-1,966.80

Finding the Fourth Proportional to 2,212.81, 3,054.99 and 1,966.80

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Solution

The fourth proportional to 2,212.81, 3,054.99 and 1,966.80 is: 2,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.81 : 3,054.99 = 1,966.80 : x
  2. Step 2: Convert to fraction form
    2,212.81/3,054.99 = 1,966.80/x
  3. Step 3: Cross multiply
    2,212.81x = 3,054.99 × 1,966.80
  4. Step 4: Simplify right side
    2,212.81x = 6,008,554.33
  5. Step 5: Solve for x
    x = 6,008,554.33/2,212.81
  6. Step 6: Final answer
    x = 2,715.35

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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.