Home / 6,511.58-9,769.46-2,128.04

Finding the Fourth Proportional to 6,511.58, 9,769.46 and 2,128.04

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Solution

The fourth proportional to 6,511.58, 9,769.46 and 2,128.04 is: 3,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.58 : 9,769.46 = 2,128.04 : x
  2. Step 2: Convert to fraction form
    6,511.58/9,769.46 = 2,128.04/x
  3. Step 3: Cross multiply
    6,511.58x = 9,769.46 × 2,128.04
  4. Step 4: Simplify right side
    6,511.58x = 20,789,742.17
  5. Step 5: Solve for x
    x = 20,789,742.17/6,511.58
  6. Step 6: Final answer
    x = 3,192.74

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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.