Home / 6,433.72-8,878.62-3,639.28

Finding the Fourth Proportional to 6,433.72, 8,878.62 and 3,639.28

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Solution

The fourth proportional to 6,433.72, 8,878.62 and 3,639.28 is: 5,022.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,433.72 : 8,878.62 = 3,639.28 : x
  2. Step 2: Convert to fraction form
    6,433.72/8,878.62 = 3,639.28/x
  3. Step 3: Cross multiply
    6,433.72x = 8,878.62 × 3,639.28
  4. Step 4: Simplify right side
    6,433.72x = 32,311,784.19
  5. Step 5: Solve for x
    x = 32,311,784.19/6,433.72
  6. Step 6: Final answer
    x = 5,022.26

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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.