Home / 3,659.55-5,039.53-3,180.79

Finding the Fourth Proportional to 3,659.55, 5,039.53 and 3,180.79

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Solution

The fourth proportional to 3,659.55, 5,039.53 and 3,180.79 is: 4,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.55 : 5,039.53 = 3,180.79 : x
  2. Step 2: Convert to fraction form
    3,659.55/5,039.53 = 3,180.79/x
  3. Step 3: Cross multiply
    3,659.55x = 5,039.53 × 3,180.79
  4. Step 4: Simplify right side
    3,659.55x = 16,029,686.63
  5. Step 5: Solve for x
    x = 16,029,686.63/3,659.55
  6. Step 6: Final answer
    x = 4,380.23

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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.