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Finding the Fourth Proportional to 2,667.66, 4,000.67 and 935.88

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Solution

The fourth proportional to 2,667.66, 4,000.67 and 935.88 is: 1,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,667.66 : 4,000.67 = 935.88 : x
  2. Step 2: Convert to fraction form
    2,667.66/4,000.67 = 935.88/x
  3. Step 3: Cross multiply
    2,667.66x = 4,000.67 × 935.88
  4. Step 4: Simplify right side
    2,667.66x = 3,744,147.04
  5. Step 5: Solve for x
    x = 3,744,147.04/2,667.66
  6. Step 6: Final answer
    x = 1,403.53

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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.