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Finding the Fourth Proportional to 2,644.18, 3,965.10 and 794.68

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Solution

The fourth proportional to 2,644.18, 3,965.10 and 794.68 is: 1,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.18 : 3,965.10 = 794.68 : x
  2. Step 2: Convert to fraction form
    2,644.18/3,965.10 = 794.68/x
  3. Step 3: Cross multiply
    2,644.18x = 3,965.10 × 794.68
  4. Step 4: Simplify right side
    2,644.18x = 3,150,985.67
  5. Step 5: Solve for x
    x = 3,150,985.67/2,644.18
  6. Step 6: Final answer
    x = 1,191.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.