Home / 1,588.68-2,190.94-1,028.56

Finding the Fourth Proportional to 1,588.68, 2,190.94 and 1,028.56

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Solution

The fourth proportional to 1,588.68, 2,190.94 and 1,028.56 is: 1,418.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.68 : 2,190.94 = 1,028.56 : x
  2. Step 2: Convert to fraction form
    1,588.68/2,190.94 = 1,028.56/x
  3. Step 3: Cross multiply
    1,588.68x = 2,190.94 × 1,028.56
  4. Step 4: Simplify right side
    1,588.68x = 2,253,513.25
  5. Step 5: Solve for x
    x = 2,253,513.25/1,588.68
  6. Step 6: Final answer
    x = 1,418.48

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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.