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Finding the Fourth Proportional to 1,889.93, 2,608.11 and 1,050.63

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Solution

The fourth proportional to 1,889.93, 2,608.11 and 1,050.63 is: 1,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.93 : 2,608.11 = 1,050.63 : x
  2. Step 2: Convert to fraction form
    1,889.93/2,608.11 = 1,050.63/x
  3. Step 3: Cross multiply
    1,889.93x = 2,608.11 × 1,050.63
  4. Step 4: Simplify right side
    1,889.93x = 2,740,158.61
  5. Step 5: Solve for x
    x = 2,740,158.61/1,889.93
  6. Step 6: Final answer
    x = 1,449.87

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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.