Home / 3,941.92-5,439.86-2,173.51

Finding the Fourth Proportional to 3,941.92, 5,439.86 and 2,173.51

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Solution

The fourth proportional to 3,941.92, 5,439.86 and 2,173.51 is: 2,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.92 : 5,439.86 = 2,173.51 : x
  2. Step 2: Convert to fraction form
    3,941.92/5,439.86 = 2,173.51/x
  3. Step 3: Cross multiply
    3,941.92x = 5,439.86 × 2,173.51
  4. Step 4: Simplify right side
    3,941.92x = 11,823,578.89
  5. Step 5: Solve for x
    x = 11,823,578.89/3,941.92
  6. Step 6: Final answer
    x = 2,999.45

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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.