Home / 3,447.58-5,166.75-1,689.89

Finding the Fourth Proportional to 3,447.58, 5,166.75 and 1,689.89

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Solution

The fourth proportional to 3,447.58, 5,166.75 and 1,689.89 is: 2,532.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.58 : 5,166.75 = 1,689.89 : x
  2. Step 2: Convert to fraction form
    3,447.58/5,166.75 = 1,689.89/x
  3. Step 3: Cross multiply
    3,447.58x = 5,166.75 × 1,689.89
  4. Step 4: Simplify right side
    3,447.58x = 8,731,239.16
  5. Step 5: Solve for x
    x = 8,731,239.16/3,447.58
  6. Step 6: Final answer
    x = 2,532.57

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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.