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Finding the Fourth Proportional to 2,991.64, 4,485.97 and 1,895.17

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Solution

The fourth proportional to 2,991.64, 4,485.97 and 1,895.17 is: 2,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.64 : 4,485.97 = 1,895.17 : x
  2. Step 2: Convert to fraction form
    2,991.64/4,485.97 = 1,895.17/x
  3. Step 3: Cross multiply
    2,991.64x = 4,485.97 × 1,895.17
  4. Step 4: Simplify right side
    2,991.64x = 8,501,675.76
  5. Step 5: Solve for x
    x = 8,501,675.76/2,991.64
  6. Step 6: Final answer
    x = 2,841.81

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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.