Home / 1,486.35-2,231.15-1,180.17

Finding the Fourth Proportional to 1,486.35, 2,231.15 and 1,180.17

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Solution

The fourth proportional to 1,486.35, 2,231.15 and 1,180.17 is: 1,771.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.35 : 2,231.15 = 1,180.17 : x
  2. Step 2: Convert to fraction form
    1,486.35/2,231.15 = 1,180.17/x
  3. Step 3: Cross multiply
    1,486.35x = 2,231.15 × 1,180.17
  4. Step 4: Simplify right side
    1,486.35x = 2,633,130.39
  5. Step 5: Solve for x
    x = 2,633,130.39/1,486.35
  6. Step 6: Final answer
    x = 1,771.54

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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.