Home / 3,941.81-5,439.71-2,173.41

Finding the Fourth Proportional to 3,941.81, 5,439.71 and 2,173.41

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Solution

The fourth proportional to 3,941.81, 5,439.71 and 2,173.41 is: 2,999.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.81 : 5,439.71 = 2,173.41 : x
  2. Step 2: Convert to fraction form
    3,941.81/5,439.71 = 2,173.41/x
  3. Step 3: Cross multiply
    3,941.81x = 5,439.71 × 2,173.41
  4. Step 4: Simplify right side
    3,941.81x = 11,822,709.24
  5. Step 5: Solve for x
    x = 11,822,709.24/3,941.81
  6. Step 6: Final answer
    x = 2,999.31

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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.