Home / 1,983.49-2,988.85-1,644.43

Finding the Fourth Proportional to 1,983.49, 2,988.85 and 1,644.43

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Solution

The fourth proportional to 1,983.49, 2,988.85 and 1,644.43 is: 2,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.49 : 2,988.85 = 1,644.43 : x
  2. Step 2: Convert to fraction form
    1,983.49/2,988.85 = 1,644.43/x
  3. Step 3: Cross multiply
    1,983.49x = 2,988.85 × 1,644.43
  4. Step 4: Simplify right side
    1,983.49x = 4,914,954.61
  5. Step 5: Solve for x
    x = 4,914,954.61/1,983.49
  6. Step 6: Final answer
    x = 2,477.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.