Home / 1,467.11-2,188.42-1,328.60

Finding the Fourth Proportional to 1,467.11, 2,188.42 and 1,328.60

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Solution

The fourth proportional to 1,467.11, 2,188.42 and 1,328.60 is: 1,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.11 : 2,188.42 = 1,328.60 : x
  2. Step 2: Convert to fraction form
    1,467.11/2,188.42 = 1,328.60/x
  3. Step 3: Cross multiply
    1,467.11x = 2,188.42 × 1,328.60
  4. Step 4: Simplify right side
    1,467.11x = 2,907,536.96
  5. Step 5: Solve for x
    x = 2,907,536.96/1,467.11
  6. Step 6: Final answer
    x = 1,981.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.