Home / 3,974.18-5,484.16-2,181.62

Finding the Fourth Proportional to 3,974.18, 5,484.16 and 2,181.62

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Solution

The fourth proportional to 3,974.18, 5,484.16 and 2,181.62 is: 3,010.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.18 : 5,484.16 = 2,181.62 : x
  2. Step 2: Convert to fraction form
    3,974.18/5,484.16 = 2,181.62/x
  3. Step 3: Cross multiply
    3,974.18x = 5,484.16 × 2,181.62
  4. Step 4: Simplify right side
    3,974.18x = 11,964,353.14
  5. Step 5: Solve for x
    x = 11,964,353.14/3,974.18
  6. Step 6: Final answer
    x = 3,010.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.