Home / 1,964.50-2,943.09-1,415.32

Finding the Fourth Proportional to 1,964.50, 2,943.09 and 1,415.32

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Solution

The fourth proportional to 1,964.50, 2,943.09 and 1,415.32 is: 2,120.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.50 : 2,943.09 = 1,415.32 : x
  2. Step 2: Convert to fraction form
    1,964.50/2,943.09 = 1,415.32/x
  3. Step 3: Cross multiply
    1,964.50x = 2,943.09 × 1,415.32
  4. Step 4: Simplify right side
    1,964.50x = 4,165,414.14
  5. Step 5: Solve for x
    x = 4,165,414.14/1,964.50
  6. Step 6: Final answer
    x = 2,120.34

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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.