Home / 1,212.04-1,674.30-1,167.09

Finding the Fourth Proportional to 1,212.04, 1,674.30 and 1,167.09

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Solution

The fourth proportional to 1,212.04, 1,674.30 and 1,167.09 is: 1,612.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212.04 : 1,674.30 = 1,167.09 : x
  2. Step 2: Convert to fraction form
    1,212.04/1,674.30 = 1,167.09/x
  3. Step 3: Cross multiply
    1,212.04x = 1,674.30 × 1,167.09
  4. Step 4: Simplify right side
    1,212.04x = 1,954,058.79
  5. Step 5: Solve for x
    x = 1,954,058.79/1,212.04
  6. Step 6: Final answer
    x = 1,612.21

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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.