Home / 7,091.66-10,638.64-2,160.15

Finding the Fourth Proportional to 7,091.66, 10,638.64 and 2,160.15

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Solution

The fourth proportional to 7,091.66, 10,638.64 and 2,160.15 is: 3,240.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.66 : 10,638.64 = 2,160.15 : x
  2. Step 2: Convert to fraction form
    7,091.66/10,638.64 = 2,160.15/x
  3. Step 3: Cross multiply
    7,091.66x = 10,638.64 × 2,160.15
  4. Step 4: Simplify right side
    7,091.66x = 22,981,021.00
  5. Step 5: Solve for x
    x = 22,981,021.00/7,091.66
  6. Step 6: Final answer
    x = 3,240.57

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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.