Home / 1,988.09-2,744.46-1,359.63

Finding the Fourth Proportional to 1,988.09, 2,744.46 and 1,359.63

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Solution

The fourth proportional to 1,988.09, 2,744.46 and 1,359.63 is: 1,876.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.09 : 2,744.46 = 1,359.63 : x
  2. Step 2: Convert to fraction form
    1,988.09/2,744.46 = 1,359.63/x
  3. Step 3: Cross multiply
    1,988.09x = 2,744.46 × 1,359.63
  4. Step 4: Simplify right side
    1,988.09x = 3,731,450.15
  5. Step 5: Solve for x
    x = 3,731,450.15/1,988.09
  6. Step 6: Final answer
    x = 1,876.91

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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.