Home / 2,376.32-3,279-1,328.36

Finding the Fourth Proportional to 2,376.32, 3,279 and 1,328.36

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Solution

The fourth proportional to 2,376.32, 3,279 and 1,328.36 is: 1,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.32 : 3,279 = 1,328.36 : x
  2. Step 2: Convert to fraction form
    2,376.32/3,279 = 1,328.36/x
  3. Step 3: Cross multiply
    2,376.32x = 3,279 × 1,328.36
  4. Step 4: Simplify right side
    2,376.32x = 4,355,692.44
  5. Step 5: Solve for x
    x = 4,355,692.44/2,376.32
  6. Step 6: Final answer
    x = 1,832.96

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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.