Home / 1,637.16-2,456.73-663.19

Finding the Fourth Proportional to 1,637.16, 2,456.73 and 663.19

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Solution

The fourth proportional to 1,637.16, 2,456.73 and 663.19 is: 995.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.16 : 2,456.73 = 663.19 : x
  2. Step 2: Convert to fraction form
    1,637.16/2,456.73 = 663.19/x
  3. Step 3: Cross multiply
    1,637.16x = 2,456.73 × 663.19
  4. Step 4: Simplify right side
    1,637.16x = 1,629,272.63
  5. Step 5: Solve for x
    x = 1,629,272.63/1,637.16
  6. Step 6: Final answer
    x = 995.18

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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.