Home / 4,507.45-6,761.82-1,387.72

Finding the Fourth Proportional to 4,507.45, 6,761.82 and 1,387.72

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Solution

The fourth proportional to 4,507.45, 6,761.82 and 1,387.72 is: 2,081.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,507.45 : 6,761.82 = 1,387.72 : x
  2. Step 2: Convert to fraction form
    4,507.45/6,761.82 = 1,387.72/x
  3. Step 3: Cross multiply
    4,507.45x = 6,761.82 × 1,387.72
  4. Step 4: Simplify right side
    4,507.45x = 9,383,507.24
  5. Step 5: Solve for x
    x = 9,383,507.24/4,507.45
  6. Step 6: Final answer
    x = 2,081.78

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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.