Home / 4,979.61-7,464.62-1,858.75

Finding the Fourth Proportional to 4,979.61, 7,464.62 and 1,858.75

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Solution

The fourth proportional to 4,979.61, 7,464.62 and 1,858.75 is: 2,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.61 : 7,464.62 = 1,858.75 : x
  2. Step 2: Convert to fraction form
    4,979.61/7,464.62 = 1,858.75/x
  3. Step 3: Cross multiply
    4,979.61x = 7,464.62 × 1,858.75
  4. Step 4: Simplify right side
    4,979.61x = 13,874,848.41
  5. Step 5: Solve for x
    x = 13,874,848.41/4,979.61
  6. Step 6: Final answer
    x = 2,786.33

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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.