Home / 1,946.43-2,686.35-1,106.97

Finding the Fourth Proportional to 1,946.43, 2,686.35 and 1,106.97

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Solution

The fourth proportional to 1,946.43, 2,686.35 and 1,106.97 is: 1,527.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.43 : 2,686.35 = 1,106.97 : x
  2. Step 2: Convert to fraction form
    1,946.43/2,686.35 = 1,106.97/x
  3. Step 3: Cross multiply
    1,946.43x = 2,686.35 × 1,106.97
  4. Step 4: Simplify right side
    1,946.43x = 2,973,708.86
  5. Step 5: Solve for x
    x = 2,973,708.86/1,946.43
  6. Step 6: Final answer
    x = 1,527.78

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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.