Home / 2,945.91-4,065.38-1,619.63

Finding the Fourth Proportional to 2,945.91, 4,065.38 and 1,619.63

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Solution

The fourth proportional to 2,945.91, 4,065.38 and 1,619.63 is: 2,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.91 : 4,065.38 = 1,619.63 : x
  2. Step 2: Convert to fraction form
    2,945.91/4,065.38 = 1,619.63/x
  3. Step 3: Cross multiply
    2,945.91x = 4,065.38 × 1,619.63
  4. Step 4: Simplify right side
    2,945.91x = 6,584,404.30
  5. Step 5: Solve for x
    x = 6,584,404.30/2,945.91
  6. Step 6: Final answer
    x = 2,235.10

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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.