Home / 2,104.39-2,903.73-1,220.03

Finding the Fourth Proportional to 2,104.39, 2,903.73 and 1,220.03

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Solution

The fourth proportional to 2,104.39, 2,903.73 and 1,220.03 is: 1,683.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.39 : 2,903.73 = 1,220.03 : x
  2. Step 2: Convert to fraction form
    2,104.39/2,903.73 = 1,220.03/x
  3. Step 3: Cross multiply
    2,104.39x = 2,903.73 × 1,220.03
  4. Step 4: Simplify right side
    2,104.39x = 3,542,629.51
  5. Step 5: Solve for x
    x = 3,542,629.51/2,104.39
  6. Step 6: Final answer
    x = 1,683.45

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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.