Home / 6,511.57-9,766.54-2,128.66

Finding the Fourth Proportional to 6,511.57, 9,766.54 and 2,128.66

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Solution

The fourth proportional to 6,511.57, 9,766.54 and 2,128.66 is: 3,192.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.57 : 9,766.54 = 2,128.66 : x
  2. Step 2: Convert to fraction form
    6,511.57/9,766.54 = 2,128.66/x
  3. Step 3: Cross multiply
    6,511.57x = 9,766.54 × 2,128.66
  4. Step 4: Simplify right side
    6,511.57x = 20,789,621.28
  5. Step 5: Solve for x
    x = 20,789,621.28/6,511.57
  6. Step 6: Final answer
    x = 3,192.72

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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.