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Finding the Fourth Proportional to 2,005.44, 2,767.44 and 1,121.34

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Solution

The fourth proportional to 2,005.44, 2,767.44 and 1,121.34 is: 1,547.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.44 : 2,767.44 = 1,121.34 : x
  2. Step 2: Convert to fraction form
    2,005.44/2,767.44 = 1,121.34/x
  3. Step 3: Cross multiply
    2,005.44x = 2,767.44 × 1,121.34
  4. Step 4: Simplify right side
    2,005.44x = 3,103,241.17
  5. Step 5: Solve for x
    x = 3,103,241.17/2,005.44
  6. Step 6: Final answer
    x = 1,547.41

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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.