Home / 1,768.05-2,439.87-982.23

Finding the Fourth Proportional to 1,768.05, 2,439.87 and 982.23

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Solution

The fourth proportional to 1,768.05, 2,439.87 and 982.23 is: 1,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.05 : 2,439.87 = 982.23 : x
  2. Step 2: Convert to fraction form
    1,768.05/2,439.87 = 982.23/x
  3. Step 3: Cross multiply
    1,768.05x = 2,439.87 × 982.23
  4. Step 4: Simplify right side
    1,768.05x = 2,396,513.51
  5. Step 5: Solve for x
    x = 2,396,513.51/1,768.05
  6. Step 6: Final answer
    x = 1,355.46

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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.