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Finding the Fourth Proportional to 2,012.66, 2,777.54 and 1,173.22

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Solution

The fourth proportional to 2,012.66, 2,777.54 and 1,173.22 is: 1,619.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.66 : 2,777.54 = 1,173.22 : x
  2. Step 2: Convert to fraction form
    2,012.66/2,777.54 = 1,173.22/x
  3. Step 3: Cross multiply
    2,012.66x = 2,777.54 × 1,173.22
  4. Step 4: Simplify right side
    2,012.66x = 3,258,659.61
  5. Step 5: Solve for x
    x = 3,258,659.61/2,012.66
  6. Step 6: Final answer
    x = 1,619.09

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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.