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Finding the Fourth Proportional to 2,804, 3,863.08 and 2,214.32

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Solution

The fourth proportional to 2,804, 3,863.08 and 2,214.32 is: 3,050.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804 : 3,863.08 = 2,214.32 : x
  2. Step 2: Convert to fraction form
    2,804/3,863.08 = 2,214.32/x
  3. Step 3: Cross multiply
    2,804x = 3,863.08 × 2,214.32
  4. Step 4: Simplify right side
    2,804x = 8,554,095.31
  5. Step 5: Solve for x
    x = 8,554,095.31/2,804
  6. Step 6: Final answer
    x = 3,050.68

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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.