Home / 6,626.40-9,940.80-2,731.20

Finding the Fourth Proportional to 6,626.40, 9,940.80 and 2,731.20

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Solution

The fourth proportional to 6,626.40, 9,940.80 and 2,731.20 is: 4,097.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.40 : 9,940.80 = 2,731.20 : x
  2. Step 2: Convert to fraction form
    6,626.40/9,940.80 = 2,731.20/x
  3. Step 3: Cross multiply
    6,626.40x = 9,940.80 × 2,731.20
  4. Step 4: Simplify right side
    6,626.40x = 27,150,312.96
  5. Step 5: Solve for x
    x = 27,150,312.96/6,626.40
  6. Step 6: Final answer
    x = 4,097.29

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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.