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Finding the Fourth Proportional to 866.18, 1,193.96 and 794.67

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Solution

The fourth proportional to 866.18, 1,193.96 and 794.67 is: 1,095.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    866.18 : 1,193.96 = 794.67 : x
  2. Step 2: Convert to fraction form
    866.18/1,193.96 = 794.67/x
  3. Step 3: Cross multiply
    866.18x = 1,193.96 × 794.67
  4. Step 4: Simplify right side
    866.18x = 948,800.22
  5. Step 5: Solve for x
    x = 948,800.22/866.18
  6. Step 6: Final answer
    x = 1,095.39

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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.