Home / 3,974.19-5,484.40-2,205.79

Finding the Fourth Proportional to 3,974.19, 5,484.40 and 2,205.79

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Solution

The fourth proportional to 3,974.19, 5,484.40 and 2,205.79 is: 3,044.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.19 : 5,484.40 = 2,205.79 : x
  2. Step 2: Convert to fraction form
    3,974.19/5,484.40 = 2,205.79/x
  3. Step 3: Cross multiply
    3,974.19x = 5,484.40 × 2,205.79
  4. Step 4: Simplify right side
    3,974.19x = 12,097,434.68
  5. Step 5: Solve for x
    x = 12,097,434.68/3,974.19
  6. Step 6: Final answer
    x = 3,044.00

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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.