Home / 2,351.15-3,243.93-1,406.55

Finding the Fourth Proportional to 2,351.15, 3,243.93 and 1,406.55

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Solution

The fourth proportional to 2,351.15, 3,243.93 and 1,406.55 is: 1,940.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.15 : 3,243.93 = 1,406.55 : x
  2. Step 2: Convert to fraction form
    2,351.15/3,243.93 = 1,406.55/x
  3. Step 3: Cross multiply
    2,351.15x = 3,243.93 × 1,406.55
  4. Step 4: Simplify right side
    2,351.15x = 4,562,749.74
  5. Step 5: Solve for x
    x = 4,562,749.74/2,351.15
  6. Step 6: Final answer
    x = 1,940.65

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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.