Home / 2,507.12-3,757.60-1,118.88

Finding the Fourth Proportional to 2,507.12, 3,757.60 and 1,118.88

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Solution

The fourth proportional to 2,507.12, 3,757.60 and 1,118.88 is: 1,676.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.12 : 3,757.60 = 1,118.88 : x
  2. Step 2: Convert to fraction form
    2,507.12/3,757.60 = 1,118.88/x
  3. Step 3: Cross multiply
    2,507.12x = 3,757.60 × 1,118.88
  4. Step 4: Simplify right side
    2,507.12x = 4,204,303.49
  5. Step 5: Solve for x
    x = 4,204,303.49/2,507.12
  6. Step 6: Final answer
    x = 1,676.95

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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.