Home / 2,386.97-3,290.56-1,676.64

Finding the Fourth Proportional to 2,386.97, 3,290.56 and 1,676.64

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Solution

The fourth proportional to 2,386.97, 3,290.56 and 1,676.64 is: 2,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.97 : 3,290.56 = 1,676.64 : x
  2. Step 2: Convert to fraction form
    2,386.97/3,290.56 = 1,676.64/x
  3. Step 3: Cross multiply
    2,386.97x = 3,290.56 × 1,676.64
  4. Step 4: Simplify right side
    2,386.97x = 5,517,084.52
  5. Step 5: Solve for x
    x = 5,517,084.52/2,386.97
  6. Step 6: Final answer
    x = 2,311.33

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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.