Home / 2,795.21-4,193.46-1,405.07

Finding the Fourth Proportional to 2,795.21, 4,193.46 and 1,405.07

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Solution

The fourth proportional to 2,795.21, 4,193.46 and 1,405.07 is: 2,107.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,795.21 : 4,193.46 = 1,405.07 : x
  2. Step 2: Convert to fraction form
    2,795.21/4,193.46 = 1,405.07/x
  3. Step 3: Cross multiply
    2,795.21x = 4,193.46 × 1,405.07
  4. Step 4: Simplify right side
    2,795.21x = 5,892,104.84
  5. Step 5: Solve for x
    x = 5,892,104.84/2,795.21
  6. Step 6: Final answer
    x = 2,107.93

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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.