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Finding the Fourth Proportional to 1,602.37, 2,209.84 and 1,079.11

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Solution

The fourth proportional to 1,602.37, 2,209.84 and 1,079.11 is: 1,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.37 : 2,209.84 = 1,079.11 : x
  2. Step 2: Convert to fraction form
    1,602.37/2,209.84 = 1,079.11/x
  3. Step 3: Cross multiply
    1,602.37x = 2,209.84 × 1,079.11
  4. Step 4: Simplify right side
    1,602.37x = 2,384,660.44
  5. Step 5: Solve for x
    x = 2,384,660.44/1,602.37
  6. Step 6: Final answer
    x = 1,488.21

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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.