Home / 3,529.79-4,874.21-2,205.75

Finding the Fourth Proportional to 3,529.79, 4,874.21 and 2,205.75

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Solution

The fourth proportional to 3,529.79, 4,874.21 and 2,205.75 is: 3,045.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.79 : 4,874.21 = 2,205.75 : x
  2. Step 2: Convert to fraction form
    3,529.79/4,874.21 = 2,205.75/x
  3. Step 3: Cross multiply
    3,529.79x = 4,874.21 × 2,205.75
  4. Step 4: Simplify right side
    3,529.79x = 10,751,288.71
  5. Step 5: Solve for x
    x = 10,751,288.71/3,529.79
  6. Step 6: Final answer
    x = 3,045.87

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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.