Home / 2,486.64-3,728.46-1,170.69

Finding the Fourth Proportional to 2,486.64, 3,728.46 and 1,170.69

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Solution

The fourth proportional to 2,486.64, 3,728.46 and 1,170.69 is: 1,755.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.64 : 3,728.46 = 1,170.69 : x
  2. Step 2: Convert to fraction form
    2,486.64/3,728.46 = 1,170.69/x
  3. Step 3: Cross multiply
    2,486.64x = 3,728.46 × 1,170.69
  4. Step 4: Simplify right side
    2,486.64x = 4,364,870.84
  5. Step 5: Solve for x
    x = 4,364,870.84/2,486.64
  6. Step 6: Final answer
    x = 1,755.33

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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.