Home / 2,689.26-4,035.48-1,456.64

Finding the Fourth Proportional to 2,689.26, 4,035.48 and 1,456.64

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Solution

The fourth proportional to 2,689.26, 4,035.48 and 1,456.64 is: 2,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.26 : 4,035.48 = 1,456.64 : x
  2. Step 2: Convert to fraction form
    2,689.26/4,035.48 = 1,456.64/x
  3. Step 3: Cross multiply
    2,689.26x = 4,035.48 × 1,456.64
  4. Step 4: Simplify right side
    2,689.26x = 5,878,241.59
  5. Step 5: Solve for x
    x = 5,878,241.59/2,689.26
  6. Step 6: Final answer
    x = 2,185.82

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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.