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Finding the Fourth Proportional to 1,304.00, 1,960.10 and 1,205.58

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Solution

The fourth proportional to 1,304.00, 1,960.10 and 1,205.58 is: 1,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.00 : 1,960.10 = 1,205.58 : x
  2. Step 2: Convert to fraction form
    1,304.00/1,960.10 = 1,205.58/x
  3. Step 3: Cross multiply
    1,304.00x = 1,960.10 × 1,205.58
  4. Step 4: Simplify right side
    1,304.00x = 2,363,063.20
  5. Step 5: Solve for x
    x = 2,363,063.20/1,304.00
  6. Step 6: Final answer
    x = 1,812.17

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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.