Home / 6,433.36-8,878.44-3,639.28

Finding the Fourth Proportional to 6,433.36, 8,878.44 and 3,639.28

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Solution

The fourth proportional to 6,433.36, 8,878.44 and 3,639.28 is: 5,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,433.36 : 8,878.44 = 3,639.28 : x
  2. Step 2: Convert to fraction form
    6,433.36/8,878.44 = 3,639.28/x
  3. Step 3: Cross multiply
    6,433.36x = 8,878.44 × 3,639.28
  4. Step 4: Simplify right side
    6,433.36x = 32,311,129.12
  5. Step 5: Solve for x
    x = 32,311,129.12/6,433.36
  6. Step 6: Final answer
    x = 5,022.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.