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Finding the Fourth Proportional to 2,093.65, 2,889.21 and 1,209.44

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Solution

The fourth proportional to 2,093.65, 2,889.21 and 1,209.44 is: 1,669.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.65 : 2,889.21 = 1,209.44 : x
  2. Step 2: Convert to fraction form
    2,093.65/2,889.21 = 1,209.44/x
  3. Step 3: Cross multiply
    2,093.65x = 2,889.21 × 1,209.44
  4. Step 4: Simplify right side
    2,093.65x = 3,494,326.14
  5. Step 5: Solve for x
    x = 3,494,326.14/2,093.65
  6. Step 6: Final answer
    x = 1,669.01

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1.5x scale

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.