Home / 1,689.58-2,537.07-1,273.15

Finding the Fourth Proportional to 1,689.58, 2,537.07 and 1,273.15

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Solution

The fourth proportional to 1,689.58, 2,537.07 and 1,273.15 is: 1,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689.58 : 2,537.07 = 1,273.15 : x
  2. Step 2: Convert to fraction form
    1,689.58/2,537.07 = 1,273.15/x
  3. Step 3: Cross multiply
    1,689.58x = 2,537.07 × 1,273.15
  4. Step 4: Simplify right side
    1,689.58x = 3,230,070.67
  5. Step 5: Solve for x
    x = 3,230,070.67/1,689.58
  6. Step 6: Final answer
    x = 1,911.76

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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.