Home / 1,932.32-2,896.80-1,385.12

Finding the Fourth Proportional to 1,932.32, 2,896.80 and 1,385.12

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Solution

The fourth proportional to 1,932.32, 2,896.80 and 1,385.12 is: 2,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.32 : 2,896.80 = 1,385.12 : x
  2. Step 2: Convert to fraction form
    1,932.32/2,896.80 = 1,385.12/x
  3. Step 3: Cross multiply
    1,932.32x = 2,896.80 × 1,385.12
  4. Step 4: Simplify right side
    1,932.32x = 4,012,415.62
  5. Step 5: Solve for x
    x = 4,012,415.62/1,932.32
  6. Step 6: Final answer
    x = 2,076.48

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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.