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Finding the Fourth Proportional to 1,908.94, 2,633.94 and 1,069.51

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Solution

The fourth proportional to 1,908.94, 2,633.94 and 1,069.51 is: 1,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.94 : 2,633.94 = 1,069.51 : x
  2. Step 2: Convert to fraction form
    1,908.94/2,633.94 = 1,069.51/x
  3. Step 3: Cross multiply
    1,908.94x = 2,633.94 × 1,069.51
  4. Step 4: Simplify right side
    1,908.94x = 2,817,025.17
  5. Step 5: Solve for x
    x = 2,817,025.17/1,908.94
  6. Step 6: Final answer
    x = 1,475.70

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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.