Home / 3,022.84-4,172.70-2,939.62

Finding the Fourth Proportional to 3,022.84, 4,172.70 and 2,939.62

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Solution

The fourth proportional to 3,022.84, 4,172.70 and 2,939.62 is: 4,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.84 : 4,172.70 = 2,939.62 : x
  2. Step 2: Convert to fraction form
    3,022.84/4,172.70 = 2,939.62/x
  3. Step 3: Cross multiply
    3,022.84x = 4,172.70 × 2,939.62
  4. Step 4: Simplify right side
    3,022.84x = 12,266,152.37
  5. Step 5: Solve for x
    x = 12,266,152.37/3,022.84
  6. Step 6: Final answer
    x = 4,057.82

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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.