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Finding the Fourth Proportional to 1,606.11, 2,216.42 and 897.98

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Solution

The fourth proportional to 1,606.11, 2,216.42 and 897.98 is: 1,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.11 : 2,216.42 = 897.98 : x
  2. Step 2: Convert to fraction form
    1,606.11/2,216.42 = 897.98/x
  3. Step 3: Cross multiply
    1,606.11x = 2,216.42 × 897.98
  4. Step 4: Simplify right side
    1,606.11x = 1,990,285.26
  5. Step 5: Solve for x
    x = 1,990,285.26/1,606.11
  6. Step 6: Final answer
    x = 1,239.20

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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.