Home / 2,305.38-3,453.51-1,378.35

Finding the Fourth Proportional to 2,305.38, 3,453.51 and 1,378.35

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Solution

The fourth proportional to 2,305.38, 3,453.51 and 1,378.35 is: 2,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.38 : 3,453.51 = 1,378.35 : x
  2. Step 2: Convert to fraction form
    2,305.38/3,453.51 = 1,378.35/x
  3. Step 3: Cross multiply
    2,305.38x = 3,453.51 × 1,378.35
  4. Step 4: Simplify right side
    2,305.38x = 4,760,145.51
  5. Step 5: Solve for x
    x = 4,760,145.51/2,305.38
  6. Step 6: Final answer
    x = 2,064.80

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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.