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Finding the Fourth Proportional to 706.19, 961.94 and 692.55

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Solution

The fourth proportional to 706.19, 961.94 and 692.55 is: 943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.19 : 961.94 = 692.55 : x
  2. Step 2: Convert to fraction form
    706.19/961.94 = 692.55/x
  3. Step 3: Cross multiply
    706.19x = 961.94 × 692.55
  4. Step 4: Simplify right side
    706.19x = 666,193.28
  5. Step 5: Solve for x
    x = 666,193.28/706.19
  6. Step 6: Final answer
    x = 943.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.