Home / 7,272.46-10,912.39-3,111.35

Finding the Fourth Proportional to 7,272.46, 10,912.39 and 3,111.35

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Solution

The fourth proportional to 7,272.46, 10,912.39 and 3,111.35 is: 4,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.46 : 10,912.39 = 3,111.35 : x
  2. Step 2: Convert to fraction form
    7,272.46/10,912.39 = 3,111.35/x
  3. Step 3: Cross multiply
    7,272.46x = 10,912.39 × 3,111.35
  4. Step 4: Simplify right side
    7,272.46x = 33,952,254.89
  5. Step 5: Solve for x
    x = 33,952,254.89/7,272.46
  6. Step 6: Final answer
    x = 4,668.61

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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.