Home / 1,637.16-2,456.28-664.08

Finding the Fourth Proportional to 1,637.16, 2,456.28 and 664.08

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Solution

The fourth proportional to 1,637.16, 2,456.28 and 664.08 is: 996.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.16 : 2,456.28 = 664.08 : x
  2. Step 2: Convert to fraction form
    1,637.16/2,456.28 = 664.08/x
  3. Step 3: Cross multiply
    1,637.16x = 2,456.28 × 664.08
  4. Step 4: Simplify right side
    1,637.16x = 1,631,166.42
  5. Step 5: Solve for x
    x = 1,631,166.42/1,637.16
  6. Step 6: Final answer
    x = 996.34

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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.