Home / 2,207.12-3,305.88-1,435.28

Finding the Fourth Proportional to 2,207.12, 3,305.88 and 1,435.28

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Solution

The fourth proportional to 2,207.12, 3,305.88 and 1,435.28 is: 2,149.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.12 : 3,305.88 = 1,435.28 : x
  2. Step 2: Convert to fraction form
    2,207.12/3,305.88 = 1,435.28/x
  3. Step 3: Cross multiply
    2,207.12x = 3,305.88 × 1,435.28
  4. Step 4: Simplify right side
    2,207.12x = 4,744,863.45
  5. Step 5: Solve for x
    x = 4,744,863.45/2,207.12
  6. Step 6: Final answer
    x = 2,149.80

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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.