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Finding the Fourth Proportional to 1,958.70, 2,706.09 and 1,803.18

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Solution

The fourth proportional to 1,958.70, 2,706.09 and 1,803.18 is: 2,491.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.70 : 2,706.09 = 1,803.18 : x
  2. Step 2: Convert to fraction form
    1,958.70/2,706.09 = 1,803.18/x
  3. Step 3: Cross multiply
    1,958.70x = 2,706.09 × 1,803.18
  4. Step 4: Simplify right side
    1,958.70x = 4,879,567.37
  5. Step 5: Solve for x
    x = 4,879,567.37/1,958.70
  6. Step 6: Final answer
    x = 2,491.23

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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.