Home / 6,822.18-10,216.80-3,891.60

Finding the Fourth Proportional to 6,822.18, 10,216.80 and 3,891.60

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Solution

The fourth proportional to 6,822.18, 10,216.80 and 3,891.60 is: 5,828.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,822.18 : 10,216.80 = 3,891.60 : x
  2. Step 2: Convert to fraction form
    6,822.18/10,216.80 = 3,891.60/x
  3. Step 3: Cross multiply
    6,822.18x = 10,216.80 × 3,891.60
  4. Step 4: Simplify right side
    6,822.18x = 39,759,698.88
  5. Step 5: Solve for x
    x = 39,759,698.88/6,822.18
  6. Step 6: Final answer
    x = 5,828.00

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1.5x scale

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.