Home / 2,134.46-2,945.51-1,190.18

Finding the Fourth Proportional to 2,134.46, 2,945.51 and 1,190.18

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Solution

The fourth proportional to 2,134.46, 2,945.51 and 1,190.18 is: 1,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.46 : 2,945.51 = 1,190.18 : x
  2. Step 2: Convert to fraction form
    2,134.46/2,945.51 = 1,190.18/x
  3. Step 3: Cross multiply
    2,134.46x = 2,945.51 × 1,190.18
  4. Step 4: Simplify right side
    2,134.46x = 3,505,687.09
  5. Step 5: Solve for x
    x = 3,505,687.09/2,134.46
  6. Step 6: Final answer
    x = 1,642.42

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Half scale
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Double scale
Find fourth proportional to 2,135.46, 2,946.89 and 1,191.18
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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.