Home / 5,494.20-8,239.70-1,983.80

Finding the Fourth Proportional to 5,494.20, 8,239.70 and 1,983.80

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Solution

The fourth proportional to 5,494.20, 8,239.70 and 1,983.80 is: 2,975.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,494.20 : 8,239.70 = 1,983.80 : x
  2. Step 2: Convert to fraction form
    5,494.20/8,239.70 = 1,983.80/x
  3. Step 3: Cross multiply
    5,494.20x = 8,239.70 × 1,983.80
  4. Step 4: Simplify right side
    5,494.20x = 16,345,916.86
  5. Step 5: Solve for x
    x = 16,345,916.86/5,494.20
  6. Step 6: Final answer
    x = 2,975.12

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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.