Home / 3,615.21-5,422.82-1,018.15

Finding the Fourth Proportional to 3,615.21, 5,422.82 and 1,018.15

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Solution

The fourth proportional to 3,615.21, 5,422.82 and 1,018.15 is: 1,527.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.21 : 5,422.82 = 1,018.15 : x
  2. Step 2: Convert to fraction form
    3,615.21/5,422.82 = 1,018.15/x
  3. Step 3: Cross multiply
    3,615.21x = 5,422.82 × 1,018.15
  4. Step 4: Simplify right side
    3,615.21x = 5,521,245.87
  5. Step 5: Solve for x
    x = 5,521,245.87/3,615.21
  6. Step 6: Final answer
    x = 1,527.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.