Home / 3,941.92-5,439.98-2,173.60

Finding the Fourth Proportional to 3,941.92, 5,439.98 and 2,173.60

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Solution

The fourth proportional to 3,941.92, 5,439.98 and 2,173.60 is: 2,999.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.92 : 5,439.98 = 2,173.60 : x
  2. Step 2: Convert to fraction form
    3,941.92/5,439.98 = 2,173.60/x
  3. Step 3: Cross multiply
    3,941.92x = 5,439.98 × 2,173.60
  4. Step 4: Simplify right side
    3,941.92x = 11,824,340.53
  5. Step 5: Solve for x
    x = 11,824,340.53/3,941.92
  6. Step 6: Final answer
    x = 2,999.64

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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.