Home / 4,429.12-6,645.32-2,119.04

Finding the Fourth Proportional to 4,429.12, 6,645.32 and 2,119.04

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Solution

The fourth proportional to 4,429.12, 6,645.32 and 2,119.04 is: 3,179.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.12 : 6,645.32 = 2,119.04 : x
  2. Step 2: Convert to fraction form
    4,429.12/6,645.32 = 2,119.04/x
  3. Step 3: Cross multiply
    4,429.12x = 6,645.32 × 2,119.04
  4. Step 4: Simplify right side
    4,429.12x = 14,081,698.89
  5. Step 5: Solve for x
    x = 14,081,698.89/4,429.12
  6. Step 6: Final answer
    x = 3,179.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.