Home / 5,543.78-8,313.23-2,078.60

Finding the Fourth Proportional to 5,543.78, 8,313.23 and 2,078.60

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Solution

The fourth proportional to 5,543.78, 8,313.23 and 2,078.60 is: 3,116.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,543.78 : 8,313.23 = 2,078.60 : x
  2. Step 2: Convert to fraction form
    5,543.78/8,313.23 = 2,078.60/x
  3. Step 3: Cross multiply
    5,543.78x = 8,313.23 × 2,078.60
  4. Step 4: Simplify right side
    5,543.78x = 17,279,879.88
  5. Step 5: Solve for x
    x = 17,279,879.88/5,543.78
  6. Step 6: Final answer
    x = 3,116.99

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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.