Home / 1,732.44-2,390.66-986.58

Finding the Fourth Proportional to 1,732.44, 2,390.66 and 986.58

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Solution

The fourth proportional to 1,732.44, 2,390.66 and 986.58 is: 1,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.44 : 2,390.66 = 986.58 : x
  2. Step 2: Convert to fraction form
    1,732.44/2,390.66 = 986.58/x
  3. Step 3: Cross multiply
    1,732.44x = 2,390.66 × 986.58
  4. Step 4: Simplify right side
    1,732.44x = 2,358,577.34
  5. Step 5: Solve for x
    x = 2,358,577.34/1,732.44
  6. Step 6: Final answer
    x = 1,361.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.