Home / 1,947.46-2,685.52-1,668.64

Finding the Fourth Proportional to 1,947.46, 2,685.52 and 1,668.64

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Solution

The fourth proportional to 1,947.46, 2,685.52 and 1,668.64 is: 2,301.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.46 : 2,685.52 = 1,668.64 : x
  2. Step 2: Convert to fraction form
    1,947.46/2,685.52 = 1,668.64/x
  3. Step 3: Cross multiply
    1,947.46x = 2,685.52 × 1,668.64
  4. Step 4: Simplify right side
    1,947.46x = 4,481,166.09
  5. Step 5: Solve for x
    x = 4,481,166.09/1,947.46
  6. Step 6: Final answer
    x = 2,301.03

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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.