Home / 3,941.78-5,435.78-2,997.59

Finding the Fourth Proportional to 3,941.78, 5,435.78 and 2,997.59

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Solution

The fourth proportional to 3,941.78, 5,435.78 and 2,997.59 is: 4,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.78 : 5,435.78 = 2,997.59 : x
  2. Step 2: Convert to fraction form
    3,941.78/5,435.78 = 2,997.59/x
  3. Step 3: Cross multiply
    3,941.78x = 5,435.78 × 2,997.59
  4. Step 4: Simplify right side
    3,941.78x = 16,294,197.60
  5. Step 5: Solve for x
    x = 16,294,197.60/3,941.78
  6. Step 6: Final answer
    x = 4,133.72

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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.