Home / 1,996.70-2,756.06-1,366.98

Finding the Fourth Proportional to 1,996.70, 2,756.06 and 1,366.98

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Solution

The fourth proportional to 1,996.70, 2,756.06 and 1,366.98 is: 1,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.70 : 2,756.06 = 1,366.98 : x
  2. Step 2: Convert to fraction form
    1,996.70/2,756.06 = 1,366.98/x
  3. Step 3: Cross multiply
    1,996.70x = 2,756.06 × 1,366.98
  4. Step 4: Simplify right side
    1,996.70x = 3,767,478.90
  5. Step 5: Solve for x
    x = 3,767,478.90/1,996.70
  6. Step 6: Final answer
    x = 1,886.85

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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.