Home / 2,982.12-4,474.69-1,338.32

Finding the Fourth Proportional to 2,982.12, 4,474.69 and 1,338.32

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Solution

The fourth proportional to 2,982.12, 4,474.69 and 1,338.32 is: 2,008.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.12 : 4,474.69 = 1,338.32 : x
  2. Step 2: Convert to fraction form
    2,982.12/4,474.69 = 1,338.32/x
  3. Step 3: Cross multiply
    2,982.12x = 4,474.69 × 1,338.32
  4. Step 4: Simplify right side
    2,982.12x = 5,988,582.49
  5. Step 5: Solve for x
    x = 5,988,582.49/2,982.12
  6. Step 6: Final answer
    x = 2,008.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.