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Finding the Fourth Proportional to 2,834.16, 4,252 and 886.40

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Solution

The fourth proportional to 2,834.16, 4,252 and 886.40 is: 1,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.16 : 4,252 = 886.40 : x
  2. Step 2: Convert to fraction form
    2,834.16/4,252 = 886.40/x
  3. Step 3: Cross multiply
    2,834.16x = 4,252 × 886.40
  4. Step 4: Simplify right side
    2,834.16x = 3,768,972.80
  5. Step 5: Solve for x
    x = 3,768,972.80/2,834.16
  6. Step 6: Final answer
    x = 1,329.84

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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.