Home / 1,376.14-1,897.20-982.48

Finding the Fourth Proportional to 1,376.14, 1,897.20 and 982.48

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Solution

The fourth proportional to 1,376.14, 1,897.20 and 982.48 is: 1,354.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.14 : 1,897.20 = 982.48 : x
  2. Step 2: Convert to fraction form
    1,376.14/1,897.20 = 982.48/x
  3. Step 3: Cross multiply
    1,376.14x = 1,897.20 × 982.48
  4. Step 4: Simplify right side
    1,376.14x = 1,863,961.06
  5. Step 5: Solve for x
    x = 1,863,961.06/1,376.14
  6. Step 6: Final answer
    x = 1,354.49

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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.