Home / 2,167.10-2,991.06-1,369.92

Finding the Fourth Proportional to 2,167.10, 2,991.06 and 1,369.92

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Solution

The fourth proportional to 2,167.10, 2,991.06 and 1,369.92 is: 1,890.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.10 : 2,991.06 = 1,369.92 : x
  2. Step 2: Convert to fraction form
    2,167.10/2,991.06 = 1,369.92/x
  3. Step 3: Cross multiply
    2,167.10x = 2,991.06 × 1,369.92
  4. Step 4: Simplify right side
    2,167.10x = 4,097,497.96
  5. Step 5: Solve for x
    x = 4,097,497.96/2,167.10
  6. Step 6: Final answer
    x = 1,890.77

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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.