Home / 2,726.72-4,086.58-1,984.45

Finding the Fourth Proportional to 2,726.72, 4,086.58 and 1,984.45

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Solution

The fourth proportional to 2,726.72, 4,086.58 and 1,984.45 is: 2,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.72 : 4,086.58 = 1,984.45 : x
  2. Step 2: Convert to fraction form
    2,726.72/4,086.58 = 1,984.45/x
  3. Step 3: Cross multiply
    2,726.72x = 4,086.58 × 1,984.45
  4. Step 4: Simplify right side
    2,726.72x = 8,109,613.68
  5. Step 5: Solve for x
    x = 8,109,613.68/2,726.72
  6. Step 6: Final answer
    x = 2,974.13

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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.