Home / 2,216.40-3,324.49-899.77

Finding the Fourth Proportional to 2,216.40, 3,324.49 and 899.77

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Solution

The fourth proportional to 2,216.40, 3,324.49 and 899.77 is: 1,349.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.40 : 3,324.49 = 899.77 : x
  2. Step 2: Convert to fraction form
    2,216.40/3,324.49 = 899.77/x
  3. Step 3: Cross multiply
    2,216.40x = 3,324.49 × 899.77
  4. Step 4: Simplify right side
    2,216.40x = 2,991,276.37
  5. Step 5: Solve for x
    x = 2,991,276.37/2,216.40
  6. Step 6: Final answer
    x = 1,349.61

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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.