Home / 1,664.20-2,296.89-1,384.06

Finding the Fourth Proportional to 1,664.20, 2,296.89 and 1,384.06

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Solution

The fourth proportional to 1,664.20, 2,296.89 and 1,384.06 is: 1,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.20 : 2,296.89 = 1,384.06 : x
  2. Step 2: Convert to fraction form
    1,664.20/2,296.89 = 1,384.06/x
  3. Step 3: Cross multiply
    1,664.20x = 2,296.89 × 1,384.06
  4. Step 4: Simplify right side
    1,664.20x = 3,179,033.57
  5. Step 5: Solve for x
    x = 3,179,033.57/1,664.20
  6. Step 6: Final answer
    x = 1,910.25

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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.