Home / 2,817.75-4,227.84-1,087.59

Finding the Fourth Proportional to 2,817.75, 4,227.84 and 1,087.59

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Solution

The fourth proportional to 2,817.75, 4,227.84 and 1,087.59 is: 1,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.75 : 4,227.84 = 1,087.59 : x
  2. Step 2: Convert to fraction form
    2,817.75/4,227.84 = 1,087.59/x
  3. Step 3: Cross multiply
    2,817.75x = 4,227.84 × 1,087.59
  4. Step 4: Simplify right side
    2,817.75x = 4,598,156.51
  5. Step 5: Solve for x
    x = 4,598,156.51/2,817.75
  6. Step 6: Final answer
    x = 1,631.85

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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.