Home / 3,974.16-5,484.32-2,205.76

Finding the Fourth Proportional to 3,974.16, 5,484.32 and 2,205.76

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Solution

The fourth proportional to 3,974.16, 5,484.32 and 2,205.76 is: 3,043.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.16 : 5,484.32 = 2,205.76 : x
  2. Step 2: Convert to fraction form
    3,974.16/5,484.32 = 2,205.76/x
  3. Step 3: Cross multiply
    3,974.16x = 5,484.32 × 2,205.76
  4. Step 4: Simplify right side
    3,974.16x = 12,097,093.68
  5. Step 5: Solve for x
    x = 12,097,093.68/3,974.16
  6. Step 6: Final answer
    x = 3,043.94

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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.