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Finding the Fourth Proportional to 1,908.87, 2,875.30 and 1,736.64

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Solution

The fourth proportional to 1,908.87, 2,875.30 and 1,736.64 is: 2,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.87 : 2,875.30 = 1,736.64 : x
  2. Step 2: Convert to fraction form
    1,908.87/2,875.30 = 1,736.64/x
  3. Step 3: Cross multiply
    1,908.87x = 2,875.30 × 1,736.64
  4. Step 4: Simplify right side
    1,908.87x = 4,993,356.65
  5. Step 5: Solve for x
    x = 4,993,356.65/1,908.87
  6. Step 6: Final answer
    x = 2,615.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.