Home / 2,418.32-3,627.80-1,185.77

Finding the Fourth Proportional to 2,418.32, 3,627.80 and 1,185.77

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Solution

The fourth proportional to 2,418.32, 3,627.80 and 1,185.77 is: 1,778.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.32 : 3,627.80 = 1,185.77 : x
  2. Step 2: Convert to fraction form
    2,418.32/3,627.80 = 1,185.77/x
  3. Step 3: Cross multiply
    2,418.32x = 3,627.80 × 1,185.77
  4. Step 4: Simplify right side
    2,418.32x = 4,301,712.34
  5. Step 5: Solve for x
    x = 4,301,712.34/2,418.32
  6. Step 6: Final answer
    x = 1,778.81

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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.