Home / 1,947.45-2,687.36-1,063.07

Finding the Fourth Proportional to 1,947.45, 2,687.36 and 1,063.07

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Solution

The fourth proportional to 1,947.45, 2,687.36 and 1,063.07 is: 1,466.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.45 : 2,687.36 = 1,063.07 : x
  2. Step 2: Convert to fraction form
    1,947.45/2,687.36 = 1,063.07/x
  3. Step 3: Cross multiply
    1,947.45x = 2,687.36 × 1,063.07
  4. Step 4: Simplify right side
    1,947.45x = 2,856,851.80
  5. Step 5: Solve for x
    x = 2,856,851.80/1,947.45
  6. Step 6: Final answer
    x = 1,466.97

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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.