Home / 2,055.60-2,836.80-1,171.26

Finding the Fourth Proportional to 2,055.60, 2,836.80 and 1,171.26

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Solution

The fourth proportional to 2,055.60, 2,836.80 and 1,171.26 is: 1,616.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.60 : 2,836.80 = 1,171.26 : x
  2. Step 2: Convert to fraction form
    2,055.60/2,836.80 = 1,171.26/x
  3. Step 3: Cross multiply
    2,055.60x = 2,836.80 × 1,171.26
  4. Step 4: Simplify right side
    2,055.60x = 3,322,630.37
  5. Step 5: Solve for x
    x = 3,322,630.37/2,055.60
  6. Step 6: Final answer
    x = 1,616.38

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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.