Home / 2,216.86-3,325.21-829.73

Finding the Fourth Proportional to 2,216.86, 3,325.21 and 829.73

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Solution

The fourth proportional to 2,216.86, 3,325.21 and 829.73 is: 1,244.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.86 : 3,325.21 = 829.73 : x
  2. Step 2: Convert to fraction form
    2,216.86/3,325.21 = 829.73/x
  3. Step 3: Cross multiply
    2,216.86x = 3,325.21 × 829.73
  4. Step 4: Simplify right side
    2,216.86x = 2,759,026.49
  5. Step 5: Solve for x
    x = 2,759,026.49/2,216.86
  6. Step 6: Final answer
    x = 1,244.57

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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.