Home / 3,144.60-4,712.82-1,971.84

Finding the Fourth Proportional to 3,144.60, 4,712.82 and 1,971.84

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Solution

The fourth proportional to 3,144.60, 4,712.82 and 1,971.84 is: 2,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.60 : 4,712.82 = 1,971.84 : x
  2. Step 2: Convert to fraction form
    3,144.60/4,712.82 = 1,971.84/x
  3. Step 3: Cross multiply
    3,144.60x = 4,712.82 × 1,971.84
  4. Step 4: Simplify right side
    3,144.60x = 9,292,926.99
  5. Step 5: Solve for x
    x = 9,292,926.99/3,144.60
  6. Step 6: Final answer
    x = 2,955.20

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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.