Home / 1,517.19-2,093.23-919.49

Finding the Fourth Proportional to 1,517.19, 2,093.23 and 919.49

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Solution

The fourth proportional to 1,517.19, 2,093.23 and 919.49 is: 1,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.19 : 2,093.23 = 919.49 : x
  2. Step 2: Convert to fraction form
    1,517.19/2,093.23 = 919.49/x
  3. Step 3: Cross multiply
    1,517.19x = 2,093.23 × 919.49
  4. Step 4: Simplify right side
    1,517.19x = 1,924,704.05
  5. Step 5: Solve for x
    x = 1,924,704.05/1,517.19
  6. Step 6: Final answer
    x = 1,268.60

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Half scale
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Double scale
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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.