Home / 5,775.42-8,662.23-1,879.80

Finding the Fourth Proportional to 5,775.42, 8,662.23 and 1,879.80

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Solution

The fourth proportional to 5,775.42, 8,662.23 and 1,879.80 is: 2,819.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.42 : 8,662.23 = 1,879.80 : x
  2. Step 2: Convert to fraction form
    5,775.42/8,662.23 = 1,879.80/x
  3. Step 3: Cross multiply
    5,775.42x = 8,662.23 × 1,879.80
  4. Step 4: Simplify right side
    5,775.42x = 16,283,259.95
  5. Step 5: Solve for x
    x = 16,283,259.95/5,775.42
  6. Step 6: Final answer
    x = 2,819.41

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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.