Home / 3,021.84-4,171.32-2,938.62

Finding the Fourth Proportional to 3,021.84, 4,171.32 and 2,938.62

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Solution

The fourth proportional to 3,021.84, 4,171.32 and 2,938.62 is: 4,056.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.84 : 4,171.32 = 2,938.62 : x
  2. Step 2: Convert to fraction form
    3,021.84/4,171.32 = 2,938.62/x
  3. Step 3: Cross multiply
    3,021.84x = 4,171.32 × 2,938.62
  4. Step 4: Simplify right side
    3,021.84x = 12,257,924.38
  5. Step 5: Solve for x
    x = 12,257,924.38/3,021.84
  6. Step 6: Final answer
    x = 4,056.44

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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.