Home / 1,213.10-1,675.22-1,167.96

Finding the Fourth Proportional to 1,213.10, 1,675.22 and 1,167.96

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Solution

The fourth proportional to 1,213.10, 1,675.22 and 1,167.96 is: 1,612.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.10 : 1,675.22 = 1,167.96 : x
  2. Step 2: Convert to fraction form
    1,213.10/1,675.22 = 1,167.96/x
  3. Step 3: Cross multiply
    1,213.10x = 1,675.22 × 1,167.96
  4. Step 4: Simplify right side
    1,213.10x = 1,956,584.11
  5. Step 5: Solve for x
    x = 1,956,584.11/1,213.10
  6. Step 6: Final answer
    x = 1,612.89

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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.