Home / 2,945.12-4,415.21-2,018.41

Finding the Fourth Proportional to 2,945.12, 4,415.21 and 2,018.41

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Solution

The fourth proportional to 2,945.12, 4,415.21 and 2,018.41 is: 3,025.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.12 : 4,415.21 = 2,018.41 : x
  2. Step 2: Convert to fraction form
    2,945.12/4,415.21 = 2,018.41/x
  3. Step 3: Cross multiply
    2,945.12x = 4,415.21 × 2,018.41
  4. Step 4: Simplify right side
    2,945.12x = 8,911,704.02
  5. Step 5: Solve for x
    x = 8,911,704.02/2,945.12
  6. Step 6: Final answer
    x = 3,025.92

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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.