Home / 2,207.10-3,304.14-1,986.78

Finding the Fourth Proportional to 2,207.10, 3,304.14 and 1,986.78

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Solution

The fourth proportional to 2,207.10, 3,304.14 and 1,986.78 is: 2,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.10 : 3,304.14 = 1,986.78 : x
  2. Step 2: Convert to fraction form
    2,207.10/3,304.14 = 1,986.78/x
  3. Step 3: Cross multiply
    2,207.10x = 3,304.14 × 1,986.78
  4. Step 4: Simplify right side
    2,207.10x = 6,564,599.27
  5. Step 5: Solve for x
    x = 6,564,599.27/2,207.10
  6. Step 6: Final answer
    x = 2,974.31

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1.5x scale

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.