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Finding the Fourth Proportional to 2,197.44, 3,040.44 and 1,918.32

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Solution

The fourth proportional to 2,197.44, 3,040.44 and 1,918.32 is: 2,654.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.44 : 3,040.44 = 1,918.32 : x
  2. Step 2: Convert to fraction form
    2,197.44/3,040.44 = 1,918.32/x
  3. Step 3: Cross multiply
    2,197.44x = 3,040.44 × 1,918.32
  4. Step 4: Simplify right side
    2,197.44x = 5,832,536.86
  5. Step 5: Solve for x
    x = 5,832,536.86/2,197.44
  6. Step 6: Final answer
    x = 2,654.24

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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.