Home / 2,740.06-4,111.12-1,645.21

Finding the Fourth Proportional to 2,740.06, 4,111.12 and 1,645.21

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Solution

The fourth proportional to 2,740.06, 4,111.12 and 1,645.21 is: 2,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.06 : 4,111.12 = 1,645.21 : x
  2. Step 2: Convert to fraction form
    2,740.06/4,111.12 = 1,645.21/x
  3. Step 3: Cross multiply
    2,740.06x = 4,111.12 × 1,645.21
  4. Step 4: Simplify right side
    2,740.06x = 6,763,662.93
  5. Step 5: Solve for x
    x = 6,763,662.93/2,740.06
  6. Step 6: Final answer
    x = 2,468.43

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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.