Home / 3,622.16-5,429.64-2,159.12

Finding the Fourth Proportional to 3,622.16, 5,429.64 and 2,159.12

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Solution

The fourth proportional to 3,622.16, 5,429.64 and 2,159.12 is: 3,236.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.16 : 5,429.64 = 2,159.12 : x
  2. Step 2: Convert to fraction form
    3,622.16/5,429.64 = 2,159.12/x
  3. Step 3: Cross multiply
    3,622.16x = 5,429.64 × 2,159.12
  4. Step 4: Simplify right side
    3,622.16x = 11,723,244.32
  5. Step 5: Solve for x
    x = 11,723,244.32/3,622.16
  6. Step 6: Final answer
    x = 3,236.53

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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.