Home / 1,368.38-2,048.31-1,324.64

Finding the Fourth Proportional to 1,368.38, 2,048.31 and 1,324.64

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Solution

The fourth proportional to 1,368.38, 2,048.31 and 1,324.64 is: 1,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.38 : 2,048.31 = 1,324.64 : x
  2. Step 2: Convert to fraction form
    1,368.38/2,048.31 = 1,324.64/x
  3. Step 3: Cross multiply
    1,368.38x = 2,048.31 × 1,324.64
  4. Step 4: Simplify right side
    1,368.38x = 2,713,263.12
  5. Step 5: Solve for x
    x = 2,713,263.12/1,368.38
  6. Step 6: Final answer
    x = 1,982.84

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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.