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Finding the Fourth Proportional to 965.00, 1,329.75 and 698.98

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Solution

The fourth proportional to 965.00, 1,329.75 and 698.98 is: 963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.00 : 1,329.75 = 698.98 : x
  2. Step 2: Convert to fraction form
    965.00/1,329.75 = 698.98/x
  3. Step 3: Cross multiply
    965.00x = 1,329.75 × 698.98
  4. Step 4: Simplify right side
    965.00x = 929,467.82
  5. Step 5: Solve for x
    x = 929,467.82/965.00
  6. Step 6: Final answer
    x = 963.18

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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.