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Finding the Fourth Proportional to 1,618.03, 2,431.67 and 796.88

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Solution

The fourth proportional to 1,618.03, 2,431.67 and 796.88 is: 1,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.03 : 2,431.67 = 796.88 : x
  2. Step 2: Convert to fraction form
    1,618.03/2,431.67 = 796.88/x
  3. Step 3: Cross multiply
    1,618.03x = 2,431.67 × 796.88
  4. Step 4: Simplify right side
    1,618.03x = 1,937,751.28
  5. Step 5: Solve for x
    x = 1,937,751.28/1,618.03
  6. Step 6: Final answer
    x = 1,197.60

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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.