Home / 1,946.97-2,687.16-1,161.06

Finding the Fourth Proportional to 1,946.97, 2,687.16 and 1,161.06

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Solution

The fourth proportional to 1,946.97, 2,687.16 and 1,161.06 is: 1,602.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.97 : 2,687.16 = 1,161.06 : x
  2. Step 2: Convert to fraction form
    1,946.97/2,687.16 = 1,161.06/x
  3. Step 3: Cross multiply
    1,946.97x = 2,687.16 × 1,161.06
  4. Step 4: Simplify right side
    1,946.97x = 3,119,953.99
  5. Step 5: Solve for x
    x = 3,119,953.99/1,946.97
  6. Step 6: Final answer
    x = 1,602.47

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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.