Home / 1,361.23-2,039.80-1,012.93

Finding the Fourth Proportional to 1,361.23, 2,039.80 and 1,012.93

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Solution

The fourth proportional to 1,361.23, 2,039.80 and 1,012.93 is: 1,517.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.23 : 2,039.80 = 1,012.93 : x
  2. Step 2: Convert to fraction form
    1,361.23/2,039.80 = 1,012.93/x
  3. Step 3: Cross multiply
    1,361.23x = 2,039.80 × 1,012.93
  4. Step 4: Simplify right side
    1,361.23x = 2,066,175.90
  5. Step 5: Solve for x
    x = 2,066,175.90/1,361.23
  6. Step 6: Final answer
    x = 1,517.87

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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.