Home / 4,639.90-6,397.42-3,224.78

Finding the Fourth Proportional to 4,639.90, 6,397.42 and 3,224.78

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Solution

The fourth proportional to 4,639.90, 6,397.42 and 3,224.78 is: 4,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.90 : 6,397.42 = 3,224.78 : x
  2. Step 2: Convert to fraction form
    4,639.90/6,397.42 = 3,224.78/x
  3. Step 3: Cross multiply
    4,639.90x = 6,397.42 × 3,224.78
  4. Step 4: Simplify right side
    4,639.90x = 20,630,255.94
  5. Step 5: Solve for x
    x = 20,630,255.94/4,639.90
  6. Step 6: Final answer
    x = 4,446.28

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1.5x scale

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.