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Finding the Fourth Proportional to 2,886.34, 4,318.26 and 2,195

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Solution

The fourth proportional to 2,886.34, 4,318.26 and 2,195 is: 3,283.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.34 : 4,318.26 = 2,195 : x
  2. Step 2: Convert to fraction form
    2,886.34/4,318.26 = 2,195/x
  3. Step 3: Cross multiply
    2,886.34x = 4,318.26 × 2,195
  4. Step 4: Simplify right side
    2,886.34x = 9,478,580.70
  5. Step 5: Solve for x
    x = 9,478,580.70/2,886.34
  6. Step 6: Final answer
    x = 3,283.94

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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.