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Finding the Fourth Proportional to 1,896.77, 2,843.32 and 972.76

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Solution

The fourth proportional to 1,896.77, 2,843.32 and 972.76 is: 1,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.77 : 2,843.32 = 972.76 : x
  2. Step 2: Convert to fraction form
    1,896.77/2,843.32 = 972.76/x
  3. Step 3: Cross multiply
    1,896.77x = 2,843.32 × 972.76
  4. Step 4: Simplify right side
    1,896.77x = 2,765,867.96
  5. Step 5: Solve for x
    x = 2,765,867.96/1,896.77
  6. Step 6: Final answer
    x = 1,458.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.