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Finding the Fourth Proportional to 2,934.64, 4,402.69 and 854.67

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Solution

The fourth proportional to 2,934.64, 4,402.69 and 854.67 is: 1,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934.64 : 4,402.69 = 854.67 : x
  2. Step 2: Convert to fraction form
    2,934.64/4,402.69 = 854.67/x
  3. Step 3: Cross multiply
    2,934.64x = 4,402.69 × 854.67
  4. Step 4: Simplify right side
    2,934.64x = 3,762,832.03
  5. Step 5: Solve for x
    x = 3,762,832.03/2,934.64
  6. Step 6: Final answer
    x = 1,282.21

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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.