Home / 6,511.83-9,769.83-2,128.29

Finding the Fourth Proportional to 6,511.83, 9,769.83 and 2,128.29

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Solution

The fourth proportional to 6,511.83, 9,769.83 and 2,128.29 is: 3,193.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.83 : 9,769.83 = 2,128.29 : x
  2. Step 2: Convert to fraction form
    6,511.83/9,769.83 = 2,128.29/x
  3. Step 3: Cross multiply
    6,511.83x = 9,769.83 × 2,128.29
  4. Step 4: Simplify right side
    6,511.83x = 20,792,982.64
  5. Step 5: Solve for x
    x = 20,792,982.64/6,511.83
  6. Step 6: Final answer
    x = 3,193.11

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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.