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Finding the Fourth Proportional to 1,361.34, 2,038.23 and 701.82

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Solution

The fourth proportional to 1,361.34, 2,038.23 and 701.82 is: 1,050.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.34 : 2,038.23 = 701.82 : x
  2. Step 2: Convert to fraction form
    1,361.34/2,038.23 = 701.82/x
  3. Step 3: Cross multiply
    1,361.34x = 2,038.23 × 701.82
  4. Step 4: Simplify right side
    1,361.34x = 1,430,470.58
  5. Step 5: Solve for x
    x = 1,430,470.58/1,361.34
  6. Step 6: Final answer
    x = 1,050.78

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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.