Home / 1,691.29-2,537.52-1,208.11

Finding the Fourth Proportional to 1,691.29, 2,537.52 and 1,208.11

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Solution

The fourth proportional to 1,691.29, 2,537.52 and 1,208.11 is: 1,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.29 : 2,537.52 = 1,208.11 : x
  2. Step 2: Convert to fraction form
    1,691.29/2,537.52 = 1,208.11/x
  3. Step 3: Cross multiply
    1,691.29x = 2,537.52 × 1,208.11
  4. Step 4: Simplify right side
    1,691.29x = 3,065,603.29
  5. Step 5: Solve for x
    x = 3,065,603.29/1,691.29
  6. Step 6: Final answer
    x = 1,812.58

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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.