Home / 1,374.38-1,896.66-982.07

Finding the Fourth Proportional to 1,374.38, 1,896.66 and 982.07

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Solution

The fourth proportional to 1,374.38, 1,896.66 and 982.07 is: 1,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.38 : 1,896.66 = 982.07 : x
  2. Step 2: Convert to fraction form
    1,374.38/1,896.66 = 982.07/x
  3. Step 3: Cross multiply
    1,374.38x = 1,896.66 × 982.07
  4. Step 4: Simplify right side
    1,374.38x = 1,862,652.89
  5. Step 5: Solve for x
    x = 1,862,652.89/1,374.38
  6. Step 6: Final answer
    x = 1,355.27

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1.5x scale

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.