Home / 1,971.77-2,959.97-1,384.36

Finding the Fourth Proportional to 1,971.77, 2,959.97 and 1,384.36

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Solution

The fourth proportional to 1,971.77, 2,959.97 and 1,384.36 is: 2,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.77 : 2,959.97 = 1,384.36 : x
  2. Step 2: Convert to fraction form
    1,971.77/2,959.97 = 1,384.36/x
  3. Step 3: Cross multiply
    1,971.77x = 2,959.97 × 1,384.36
  4. Step 4: Simplify right side
    1,971.77x = 4,097,659.88
  5. Step 5: Solve for x
    x = 4,097,659.88/1,971.77
  6. Step 6: Final answer
    x = 2,078.16

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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.