Home / 1,643.18-2,265.96-1,269.26

Finding the Fourth Proportional to 1,643.18, 2,265.96 and 1,269.26

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Solution

The fourth proportional to 1,643.18, 2,265.96 and 1,269.26 is: 1,750.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.18 : 2,265.96 = 1,269.26 : x
  2. Step 2: Convert to fraction form
    1,643.18/2,265.96 = 1,269.26/x
  3. Step 3: Cross multiply
    1,643.18x = 2,265.96 × 1,269.26
  4. Step 4: Simplify right side
    1,643.18x = 2,876,092.39
  5. Step 5: Solve for x
    x = 2,876,092.39/1,643.18
  6. Step 6: Final answer
    x = 1,750.32

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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.