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Finding the Fourth Proportional to 693.35, 956.76 and 382.85

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Solution

The fourth proportional to 693.35, 956.76 and 382.85 is: 528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.35 : 956.76 = 382.85 : x
  2. Step 2: Convert to fraction form
    693.35/956.76 = 382.85/x
  3. Step 3: Cross multiply
    693.35x = 956.76 × 382.85
  4. Step 4: Simplify right side
    693.35x = 366,295.57
  5. Step 5: Solve for x
    x = 366,295.57/693.35
  6. Step 6: Final answer
    x = 528.30

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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.