Home / 2,690.97-4,031.90-1,304.96

Finding the Fourth Proportional to 2,690.97, 4,031.90 and 1,304.96

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Solution

The fourth proportional to 2,690.97, 4,031.90 and 1,304.96 is: 1,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.97 : 4,031.90 = 1,304.96 : x
  2. Step 2: Convert to fraction form
    2,690.97/4,031.90 = 1,304.96/x
  3. Step 3: Cross multiply
    2,690.97x = 4,031.90 × 1,304.96
  4. Step 4: Simplify right side
    2,690.97x = 5,261,441.54
  5. Step 5: Solve for x
    x = 5,261,441.54/2,690.97
  6. Step 6: Final answer
    x = 1,955.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.