Home / 2,940.12-4,405.21-1,457.35

Finding the Fourth Proportional to 2,940.12, 4,405.21 and 1,457.35

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Solution

The fourth proportional to 2,940.12, 4,405.21 and 1,457.35 is: 2,183.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.12 : 4,405.21 = 1,457.35 : x
  2. Step 2: Convert to fraction form
    2,940.12/4,405.21 = 1,457.35/x
  3. Step 3: Cross multiply
    2,940.12x = 4,405.21 × 1,457.35
  4. Step 4: Simplify right side
    2,940.12x = 6,419,918.14
  5. Step 5: Solve for x
    x = 6,419,918.14/2,940.12
  6. Step 6: Final answer
    x = 2,183.56

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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.