Home / 3,148.13-4,712.99-1,974.38

Finding the Fourth Proportional to 3,148.13, 4,712.99 and 1,974.38

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Solution

The fourth proportional to 3,148.13, 4,712.99 and 1,974.38 is: 2,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.13 : 4,712.99 = 1,974.38 : x
  2. Step 2: Convert to fraction form
    3,148.13/4,712.99 = 1,974.38/x
  3. Step 3: Cross multiply
    3,148.13x = 4,712.99 × 1,974.38
  4. Step 4: Simplify right side
    3,148.13x = 9,305,199.76
  5. Step 5: Solve for x
    x = 9,305,199.76/3,148.13
  6. Step 6: Final answer
    x = 2,955.78

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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.