Home / 2,945.74-4,065.39-1,619.70

Finding the Fourth Proportional to 2,945.74, 4,065.39 and 1,619.70

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Solution

The fourth proportional to 2,945.74, 4,065.39 and 1,619.70 is: 2,235.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.74 : 4,065.39 = 1,619.70 : x
  2. Step 2: Convert to fraction form
    2,945.74/4,065.39 = 1,619.70/x
  3. Step 3: Cross multiply
    2,945.74x = 4,065.39 × 1,619.70
  4. Step 4: Simplify right side
    2,945.74x = 6,584,712.18
  5. Step 5: Solve for x
    x = 6,584,712.18/2,945.74
  6. Step 6: Final answer
    x = 2,235.33

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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.