Home / 1,671.49-2,305.94-1,007.96

Finding the Fourth Proportional to 1,671.49, 2,305.94 and 1,007.96

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Solution

The fourth proportional to 1,671.49, 2,305.94 and 1,007.96 is: 1,390.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.49 : 2,305.94 = 1,007.96 : x
  2. Step 2: Convert to fraction form
    1,671.49/2,305.94 = 1,007.96/x
  3. Step 3: Cross multiply
    1,671.49x = 2,305.94 × 1,007.96
  4. Step 4: Simplify right side
    1,671.49x = 2,324,290.24
  5. Step 5: Solve for x
    x = 2,324,290.24/1,671.49
  6. Step 6: Final answer
    x = 1,390.55

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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.