Home / 3,974.08-5,483.76-2,205.76

Finding the Fourth Proportional to 3,974.08, 5,483.76 and 2,205.76

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Solution

The fourth proportional to 3,974.08, 5,483.76 and 2,205.76 is: 3,043.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.08 : 5,483.76 = 2,205.76 : x
  2. Step 2: Convert to fraction form
    3,974.08/5,483.76 = 2,205.76/x
  3. Step 3: Cross multiply
    3,974.08x = 5,483.76 × 2,205.76
  4. Step 4: Simplify right side
    3,974.08x = 12,095,858.46
  5. Step 5: Solve for x
    x = 12,095,858.46/3,974.08
  6. Step 6: Final answer
    x = 3,043.69

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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.