Home / 2,162.09-3,246.81-1,412.84

Finding the Fourth Proportional to 2,162.09, 3,246.81 and 1,412.84

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Solution

The fourth proportional to 2,162.09, 3,246.81 and 1,412.84 is: 2,121.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.09 : 3,246.81 = 1,412.84 : x
  2. Step 2: Convert to fraction form
    2,162.09/3,246.81 = 1,412.84/x
  3. Step 3: Cross multiply
    2,162.09x = 3,246.81 × 1,412.84
  4. Step 4: Simplify right side
    2,162.09x = 4,587,215.98
  5. Step 5: Solve for x
    x = 4,587,215.98/2,162.09
  6. Step 6: Final answer
    x = 2,121.66

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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.