Home / 2,328.12-3,211.83-1,396.62

Finding the Fourth Proportional to 2,328.12, 3,211.83 and 1,396.62

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Solution

The fourth proportional to 2,328.12, 3,211.83 and 1,396.62 is: 1,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.12 : 3,211.83 = 1,396.62 : x
  2. Step 2: Convert to fraction form
    2,328.12/3,211.83 = 1,396.62/x
  3. Step 3: Cross multiply
    2,328.12x = 3,211.83 × 1,396.62
  4. Step 4: Simplify right side
    2,328.12x = 4,485,706.01
  5. Step 5: Solve for x
    x = 4,485,706.01/2,328.12
  6. Step 6: Final answer
    x = 1,926.75

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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.