Home / 6,818.40-10,222.80-2,656.80

Finding the Fourth Proportional to 6,818.40, 10,222.80 and 2,656.80

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Solution

The fourth proportional to 6,818.40, 10,222.80 and 2,656.80 is: 3,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.40 : 10,222.80 = 2,656.80 : x
  2. Step 2: Convert to fraction form
    6,818.40/10,222.80 = 2,656.80/x
  3. Step 3: Cross multiply
    6,818.40x = 10,222.80 × 2,656.80
  4. Step 4: Simplify right side
    6,818.40x = 27,159,935.04
  5. Step 5: Solve for x
    x = 27,159,935.04/6,818.40
  6. Step 6: Final answer
    x = 3,983.33

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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.