Home / 1,845.15-2,765.91-1,185.18

Finding the Fourth Proportional to 1,845.15, 2,765.91 and 1,185.18

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Solution

The fourth proportional to 1,845.15, 2,765.91 and 1,185.18 is: 1,776.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.15 : 2,765.91 = 1,185.18 : x
  2. Step 2: Convert to fraction form
    1,845.15/2,765.91 = 1,185.18/x
  3. Step 3: Cross multiply
    1,845.15x = 2,765.91 × 1,185.18
  4. Step 4: Simplify right side
    1,845.15x = 3,278,101.21
  5. Step 5: Solve for x
    x = 3,278,101.21/1,845.15
  6. Step 6: Final answer
    x = 1,776.60

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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.