Home / 4,981.42-6,872.05-3,213.60

Finding the Fourth Proportional to 4,981.42, 6,872.05 and 3,213.60

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Solution

The fourth proportional to 4,981.42, 6,872.05 and 3,213.60 is: 4,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.42 : 6,872.05 = 3,213.60 : x
  2. Step 2: Convert to fraction form
    4,981.42/6,872.05 = 3,213.60/x
  3. Step 3: Cross multiply
    4,981.42x = 6,872.05 × 3,213.60
  4. Step 4: Simplify right side
    4,981.42x = 22,083,969.45
  5. Step 5: Solve for x
    x = 22,083,969.45/4,981.42
  6. Step 6: Final answer
    x = 4,433.27

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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.