Home / 4,429.72-6,629.16-3,640.24

Finding the Fourth Proportional to 4,429.72, 6,629.16 and 3,640.24

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Solution

The fourth proportional to 4,429.72, 6,629.16 and 3,640.24 is: 5,447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.72 : 6,629.16 = 3,640.24 : x
  2. Step 2: Convert to fraction form
    4,429.72/6,629.16 = 3,640.24/x
  3. Step 3: Cross multiply
    4,429.72x = 6,629.16 × 3,640.24
  4. Step 4: Simplify right side
    4,429.72x = 24,131,733.40
  5. Step 5: Solve for x
    x = 24,131,733.40/4,429.72
  6. Step 6: Final answer
    x = 5,447.69

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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.