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Finding the Fourth Proportional to 2,627.80, 3,941.56 and 984.23

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Solution

The fourth proportional to 2,627.80, 3,941.56 and 984.23 is: 1,476.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,627.80 : 3,941.56 = 984.23 : x
  2. Step 2: Convert to fraction form
    2,627.80/3,941.56 = 984.23/x
  3. Step 3: Cross multiply
    2,627.80x = 3,941.56 × 984.23
  4. Step 4: Simplify right side
    2,627.80x = 3,879,397.90
  5. Step 5: Solve for x
    x = 3,879,397.90/2,627.80
  6. Step 6: Final answer
    x = 1,476.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.