Home / 2,409.63-3,611.67-1,108.35

Finding the Fourth Proportional to 2,409.63, 3,611.67 and 1,108.35

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Solution

The fourth proportional to 2,409.63, 3,611.67 and 1,108.35 is: 1,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.63 : 3,611.67 = 1,108.35 : x
  2. Step 2: Convert to fraction form
    2,409.63/3,611.67 = 1,108.35/x
  3. Step 3: Cross multiply
    2,409.63x = 3,611.67 × 1,108.35
  4. Step 4: Simplify right side
    2,409.63x = 4,002,994.44
  5. Step 5: Solve for x
    x = 4,002,994.44/2,409.63
  6. Step 6: Final answer
    x = 1,661.25

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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.