Home / 3,941.79-5,439.46-2,173.07

Finding the Fourth Proportional to 3,941.79, 5,439.46 and 2,173.07

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Solution

The fourth proportional to 3,941.79, 5,439.46 and 2,173.07 is: 2,998.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.79 : 5,439.46 = 2,173.07 : x
  2. Step 2: Convert to fraction form
    3,941.79/5,439.46 = 2,173.07/x
  3. Step 3: Cross multiply
    3,941.79x = 5,439.46 × 2,173.07
  4. Step 4: Simplify right side
    3,941.79x = 11,820,327.34
  5. Step 5: Solve for x
    x = 11,820,327.34/3,941.79
  6. Step 6: Final answer
    x = 2,998.72

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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.