Home / 6,511.92-9,767.16-2,128.92

Finding the Fourth Proportional to 6,511.92, 9,767.16 and 2,128.92

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Solution

The fourth proportional to 6,511.92, 9,767.16 and 2,128.92 is: 3,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.92 : 9,767.16 = 2,128.92 : x
  2. Step 2: Convert to fraction form
    6,511.92/9,767.16 = 2,128.92/x
  3. Step 3: Cross multiply
    6,511.92x = 9,767.16 × 2,128.92
  4. Step 4: Simplify right side
    6,511.92x = 20,793,502.27
  5. Step 5: Solve for x
    x = 20,793,502.27/6,511.92
  6. Step 6: Final answer
    x = 3,193.14

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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.