Home / 6,905.78-10,360.70-3,210.21

Finding the Fourth Proportional to 6,905.78, 10,360.70 and 3,210.21

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Solution

The fourth proportional to 6,905.78, 10,360.70 and 3,210.21 is: 4,816.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.78 : 10,360.70 = 3,210.21 : x
  2. Step 2: Convert to fraction form
    6,905.78/10,360.70 = 3,210.21/x
  3. Step 3: Cross multiply
    6,905.78x = 10,360.70 × 3,210.21
  4. Step 4: Simplify right side
    6,905.78x = 33,260,006.70
  5. Step 5: Solve for x
    x = 33,260,006.70/6,905.78
  6. Step 6: Final answer
    x = 4,816.26

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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.