Home / 3,876.69-5,816.58-1,411.68

Finding the Fourth Proportional to 3,876.69, 5,816.58 and 1,411.68

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Solution

The fourth proportional to 3,876.69, 5,816.58 and 1,411.68 is: 2,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.69 : 5,816.58 = 1,411.68 : x
  2. Step 2: Convert to fraction form
    3,876.69/5,816.58 = 1,411.68/x
  3. Step 3: Cross multiply
    3,876.69x = 5,816.58 × 1,411.68
  4. Step 4: Simplify right side
    3,876.69x = 8,211,149.65
  5. Step 5: Solve for x
    x = 8,211,149.65/3,876.69
  6. Step 6: Final answer
    x = 2,118.08

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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.