Home / 1,946.13-2,687.13-1,283.91

Finding the Fourth Proportional to 1,946.13, 2,687.13 and 1,283.91

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Solution

The fourth proportional to 1,946.13, 2,687.13 and 1,283.91 is: 1,772.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.13 : 2,687.13 = 1,283.91 : x
  2. Step 2: Convert to fraction form
    1,946.13/2,687.13 = 1,283.91/x
  3. Step 3: Cross multiply
    1,946.13x = 2,687.13 × 1,283.91
  4. Step 4: Simplify right side
    1,946.13x = 3,450,033.08
  5. Step 5: Solve for x
    x = 3,450,033.08/1,946.13
  6. Step 6: Final answer
    x = 1,772.77

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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.