Home / 1,646.73-2,272.29-938.58

Finding the Fourth Proportional to 1,646.73, 2,272.29 and 938.58

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Solution

The fourth proportional to 1,646.73, 2,272.29 and 938.58 is: 1,295.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.73 : 2,272.29 = 938.58 : x
  2. Step 2: Convert to fraction form
    1,646.73/2,272.29 = 938.58/x
  3. Step 3: Cross multiply
    1,646.73x = 2,272.29 × 938.58
  4. Step 4: Simplify right side
    1,646.73x = 2,132,725.95
  5. Step 5: Solve for x
    x = 2,132,725.95/1,646.73
  6. Step 6: Final answer
    x = 1,295.13

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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.