Home / 3,870-5,795.69-2,479.03

Finding the Fourth Proportional to 3,870, 5,795.69 and 2,479.03

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Solution

The fourth proportional to 3,870, 5,795.69 and 2,479.03 is: 3,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870 : 5,795.69 = 2,479.03 : x
  2. Step 2: Convert to fraction form
    3,870/5,795.69 = 2,479.03/x
  3. Step 3: Cross multiply
    3,870x = 5,795.69 × 2,479.03
  4. Step 4: Simplify right side
    3,870x = 14,367,662.50
  5. Step 5: Solve for x
    x = 14,367,662.50/3,870
  6. Step 6: Final answer
    x = 3,712.57

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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.