Home / 1,845.45-2,772.23-1,361.61

Finding the Fourth Proportional to 1,845.45, 2,772.23 and 1,361.61

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Solution

The fourth proportional to 1,845.45, 2,772.23 and 1,361.61 is: 2,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.45 : 2,772.23 = 1,361.61 : x
  2. Step 2: Convert to fraction form
    1,845.45/2,772.23 = 1,361.61/x
  3. Step 3: Cross multiply
    1,845.45x = 2,772.23 × 1,361.61
  4. Step 4: Simplify right side
    1,845.45x = 3,774,689.28
  5. Step 5: Solve for x
    x = 3,774,689.28/1,845.45
  6. Step 6: Final answer
    x = 2,045.40

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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.