Home / 2,813.58-3,882.33-1,765.98

Finding the Fourth Proportional to 2,813.58, 3,882.33 and 1,765.98

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Solution

The fourth proportional to 2,813.58, 3,882.33 and 1,765.98 is: 2,436.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.58 : 3,882.33 = 1,765.98 : x
  2. Step 2: Convert to fraction form
    2,813.58/3,882.33 = 1,765.98/x
  3. Step 3: Cross multiply
    2,813.58x = 3,882.33 × 1,765.98
  4. Step 4: Simplify right side
    2,813.58x = 6,856,117.13
  5. Step 5: Solve for x
    x = 6,856,117.13/2,813.58
  6. Step 6: Final answer
    x = 2,436.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.