Home / 2,120.85-2,926.94-1,176.73

Finding the Fourth Proportional to 2,120.85, 2,926.94 and 1,176.73

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Solution

The fourth proportional to 2,120.85, 2,926.94 and 1,176.73 is: 1,623.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.85 : 2,926.94 = 1,176.73 : x
  2. Step 2: Convert to fraction form
    2,120.85/2,926.94 = 1,176.73/x
  3. Step 3: Cross multiply
    2,120.85x = 2,926.94 × 1,176.73
  4. Step 4: Simplify right side
    2,120.85x = 3,444,204.91
  5. Step 5: Solve for x
    x = 3,444,204.91/2,120.85
  6. Step 6: Final answer
    x = 1,623.97

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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.