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Finding the Fourth Proportional to 2,836.88, 3,911.88 and 2,330.96

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Solution

The fourth proportional to 2,836.88, 3,911.88 and 2,330.96 is: 3,214.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.88 : 3,911.88 = 2,330.96 : x
  2. Step 2: Convert to fraction form
    2,836.88/3,911.88 = 2,330.96/x
  3. Step 3: Cross multiply
    2,836.88x = 3,911.88 × 2,330.96
  4. Step 4: Simplify right side
    2,836.88x = 9,118,435.80
  5. Step 5: Solve for x
    x = 9,118,435.80/2,836.88
  6. Step 6: Final answer
    x = 3,214.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.