Home / 5,446.78-8,169.36-1,984.06

Finding the Fourth Proportional to 5,446.78, 8,169.36 and 1,984.06

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Solution

The fourth proportional to 5,446.78, 8,169.36 and 1,984.06 is: 2,975.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,446.78 : 8,169.36 = 1,984.06 : x
  2. Step 2: Convert to fraction form
    5,446.78/8,169.36 = 1,984.06/x
  3. Step 3: Cross multiply
    5,446.78x = 8,169.36 × 1,984.06
  4. Step 4: Simplify right side
    5,446.78x = 16,208,500.40
  5. Step 5: Solve for x
    x = 16,208,500.40/5,446.78
  6. Step 6: Final answer
    x = 2,975.79

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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.