Home / 2,286.63-3,421.74-1,979.54

Finding the Fourth Proportional to 2,286.63, 3,421.74 and 1,979.54

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Solution

The fourth proportional to 2,286.63, 3,421.74 and 1,979.54 is: 2,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.63 : 3,421.74 = 1,979.54 : x
  2. Step 2: Convert to fraction form
    2,286.63/3,421.74 = 1,979.54/x
  3. Step 3: Cross multiply
    2,286.63x = 3,421.74 × 1,979.54
  4. Step 4: Simplify right side
    2,286.63x = 6,773,474.35
  5. Step 5: Solve for x
    x = 6,773,474.35/2,286.63
  6. Step 6: Final answer
    x = 2,962.21

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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.