Home / 5,321.24-7,970.70-2,550.20

Finding the Fourth Proportional to 5,321.24, 7,970.70 and 2,550.20

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Solution

The fourth proportional to 5,321.24, 7,970.70 and 2,550.20 is: 3,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.24 : 7,970.70 = 2,550.20 : x
  2. Step 2: Convert to fraction form
    5,321.24/7,970.70 = 2,550.20/x
  3. Step 3: Cross multiply
    5,321.24x = 7,970.70 × 2,550.20
  4. Step 4: Simplify right side
    5,321.24x = 20,326,879.14
  5. Step 5: Solve for x
    x = 20,326,879.14/5,321.24
  6. Step 6: Final answer
    x = 3,819.95

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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.