Home / 6,811.92-10,216.68-1,880.36

Finding the Fourth Proportional to 6,811.92, 10,216.68 and 1,880.36

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Solution

The fourth proportional to 6,811.92, 10,216.68 and 1,880.36 is: 2,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.92 : 10,216.68 = 1,880.36 : x
  2. Step 2: Convert to fraction form
    6,811.92/10,216.68 = 1,880.36/x
  3. Step 3: Cross multiply
    6,811.92x = 10,216.68 × 1,880.36
  4. Step 4: Simplify right side
    6,811.92x = 19,211,036.40
  5. Step 5: Solve for x
    x = 19,211,036.40/6,811.92
  6. Step 6: Final answer
    x = 2,820.21

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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.