Home / 1,384.08-2,065.92-1,268.64

Finding the Fourth Proportional to 1,384.08, 2,065.92 and 1,268.64

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Solution

The fourth proportional to 1,384.08, 2,065.92 and 1,268.64 is: 1,893.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.08 : 2,065.92 = 1,268.64 : x
  2. Step 2: Convert to fraction form
    1,384.08/2,065.92 = 1,268.64/x
  3. Step 3: Cross multiply
    1,384.08x = 2,065.92 × 1,268.64
  4. Step 4: Simplify right side
    1,384.08x = 2,620,908.75
  5. Step 5: Solve for x
    x = 2,620,908.75/1,384.08
  6. Step 6: Final answer
    x = 1,893.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.