Home / 2,675.22-3,691.94-1,680.13

Finding the Fourth Proportional to 2,675.22, 3,691.94 and 1,680.13

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Solution

The fourth proportional to 2,675.22, 3,691.94 and 1,680.13 is: 2,318.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.22 : 3,691.94 = 1,680.13 : x
  2. Step 2: Convert to fraction form
    2,675.22/3,691.94 = 1,680.13/x
  3. Step 3: Cross multiply
    2,675.22x = 3,691.94 × 1,680.13
  4. Step 4: Simplify right side
    2,675.22x = 6,202,939.15
  5. Step 5: Solve for x
    x = 6,202,939.15/2,675.22
  6. Step 6: Final answer
    x = 2,318.67

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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.