Home / 2,945.92-4,065.38-1,619.71

Finding the Fourth Proportional to 2,945.92, 4,065.38 and 1,619.71

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Solution

The fourth proportional to 2,945.92, 4,065.38 and 1,619.71 is: 2,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.92 : 4,065.38 = 1,619.71 : x
  2. Step 2: Convert to fraction form
    2,945.92/4,065.38 = 1,619.71/x
  3. Step 3: Cross multiply
    2,945.92x = 4,065.38 × 1,619.71
  4. Step 4: Simplify right side
    2,945.92x = 6,584,726.48
  5. Step 5: Solve for x
    x = 6,584,726.48/2,945.92
  6. Step 6: Final answer
    x = 2,235.20

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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.