Home / 3,642.42-5,021.43-3,080.62

Finding the Fourth Proportional to 3,642.42, 5,021.43 and 3,080.62

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Solution

The fourth proportional to 3,642.42, 5,021.43 and 3,080.62 is: 4,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.42 : 5,021.43 = 3,080.62 : x
  2. Step 2: Convert to fraction form
    3,642.42/5,021.43 = 3,080.62/x
  3. Step 3: Cross multiply
    3,642.42x = 5,021.43 × 3,080.62
  4. Step 4: Simplify right side
    3,642.42x = 15,469,117.69
  5. Step 5: Solve for x
    x = 15,469,117.69/3,642.42
  6. Step 6: Final answer
    x = 4,246.93

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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.