Home / 7,221.64-10,828.41-2,290.36

Finding the Fourth Proportional to 7,221.64, 10,828.41 and 2,290.36

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Solution

The fourth proportional to 7,221.64, 10,828.41 and 2,290.36 is: 3,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.64 : 10,828.41 = 2,290.36 : x
  2. Step 2: Convert to fraction form
    7,221.64/10,828.41 = 2,290.36/x
  3. Step 3: Cross multiply
    7,221.64x = 10,828.41 × 2,290.36
  4. Step 4: Simplify right side
    7,221.64x = 24,800,957.13
  5. Step 5: Solve for x
    x = 24,800,957.13/7,221.64
  6. Step 6: Final answer
    x = 3,434.26

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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.