Home / 1,471.13-2,028.34-1,190.33

Finding the Fourth Proportional to 1,471.13, 2,028.34 and 1,190.33

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Solution

The fourth proportional to 1,471.13, 2,028.34 and 1,190.33 is: 1,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.13 : 2,028.34 = 1,190.33 : x
  2. Step 2: Convert to fraction form
    1,471.13/2,028.34 = 1,190.33/x
  3. Step 3: Cross multiply
    1,471.13x = 2,028.34 × 1,190.33
  4. Step 4: Simplify right side
    1,471.13x = 2,414,393.95
  5. Step 5: Solve for x
    x = 2,414,393.95/1,471.13
  6. Step 6: Final answer
    x = 1,641.18

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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.