Home / 2,669.40-4,004.90-1,208.56

Finding the Fourth Proportional to 2,669.40, 4,004.90 and 1,208.56

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Solution

The fourth proportional to 2,669.40, 4,004.90 and 1,208.56 is: 1,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.40 : 4,004.90 = 1,208.56 : x
  2. Step 2: Convert to fraction form
    2,669.40/4,004.90 = 1,208.56/x
  3. Step 3: Cross multiply
    2,669.40x = 4,004.90 × 1,208.56
  4. Step 4: Simplify right side
    2,669.40x = 4,840,161.94
  5. Step 5: Solve for x
    x = 4,840,161.94/2,669.40
  6. Step 6: Final answer
    x = 1,813.20

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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.