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Finding the Fourth Proportional to 1,959.81, 2,687.01 and 1,924.73

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Solution

The fourth proportional to 1,959.81, 2,687.01 and 1,924.73 is: 2,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.81 : 2,687.01 = 1,924.73 : x
  2. Step 2: Convert to fraction form
    1,959.81/2,687.01 = 1,924.73/x
  3. Step 3: Cross multiply
    1,959.81x = 2,687.01 × 1,924.73
  4. Step 4: Simplify right side
    1,959.81x = 5,171,758.18
  5. Step 5: Solve for x
    x = 5,171,758.18/1,959.81
  6. Step 6: Final answer
    x = 2,638.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.