Home / 2,110.75-2,912.52-1,271.65

Finding the Fourth Proportional to 2,110.75, 2,912.52 and 1,271.65

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Solution

The fourth proportional to 2,110.75, 2,912.52 and 1,271.65 is: 1,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.75 : 2,912.52 = 1,271.65 : x
  2. Step 2: Convert to fraction form
    2,110.75/2,912.52 = 1,271.65/x
  3. Step 3: Cross multiply
    2,110.75x = 2,912.52 × 1,271.65
  4. Step 4: Simplify right side
    2,110.75x = 3,703,706.06
  5. Step 5: Solve for x
    x = 3,703,706.06/2,110.75
  6. Step 6: Final answer
    x = 1,754.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.