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Finding the Fourth Proportional to 692.38, 956.19 and 683.29

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Solution

The fourth proportional to 692.38, 956.19 and 683.29 is: 943.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.38 : 956.19 = 683.29 : x
  2. Step 2: Convert to fraction form
    692.38/956.19 = 683.29/x
  3. Step 3: Cross multiply
    692.38x = 956.19 × 683.29
  4. Step 4: Simplify right side
    692.38x = 653,355.07
  5. Step 5: Solve for x
    x = 653,355.07/692.38
  6. Step 6: Final answer
    x = 943.64

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1.5x scale

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.