Home / 6,905.90-10,362.64-3,209.88

Finding the Fourth Proportional to 6,905.90, 10,362.64 and 3,209.88

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Solution

The fourth proportional to 6,905.90, 10,362.64 and 3,209.88 is: 4,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.90 : 10,362.64 = 3,209.88 : x
  2. Step 2: Convert to fraction form
    6,905.90/10,362.64 = 3,209.88/x
  3. Step 3: Cross multiply
    6,905.90x = 10,362.64 × 3,209.88
  4. Step 4: Simplify right side
    6,905.90x = 33,262,830.88
  5. Step 5: Solve for x
    x = 33,262,830.88/6,905.90
  6. Step 6: Final answer
    x = 4,816.58

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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.