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Finding the Fourth Proportional to 1,794.98, 2,689.62 and 1,385.12

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Solution

The fourth proportional to 1,794.98, 2,689.62 and 1,385.12 is: 2,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794.98 : 2,689.62 = 1,385.12 : x
  2. Step 2: Convert to fraction form
    1,794.98/2,689.62 = 1,385.12/x
  3. Step 3: Cross multiply
    1,794.98x = 2,689.62 × 1,385.12
  4. Step 4: Simplify right side
    1,794.98x = 3,725,446.45
  5. Step 5: Solve for x
    x = 3,725,446.45/1,794.98
  6. Step 6: Final answer
    x = 2,075.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.