Home / 2,945.21-4,064.36-1,618.88

Finding the Fourth Proportional to 2,945.21, 4,064.36 and 1,618.88

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Solution

The fourth proportional to 2,945.21, 4,064.36 and 1,618.88 is: 2,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.21 : 4,064.36 = 1,618.88 : x
  2. Step 2: Convert to fraction form
    2,945.21/4,064.36 = 1,618.88/x
  3. Step 3: Cross multiply
    2,945.21x = 4,064.36 × 1,618.88
  4. Step 4: Simplify right side
    2,945.21x = 6,579,682.70
  5. Step 5: Solve for x
    x = 6,579,682.70/2,945.21
  6. Step 6: Final answer
    x = 2,234.03

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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.