Home / 3,640.24-5,023.74-3,429.64

Finding the Fourth Proportional to 3,640.24, 5,023.74 and 3,429.64

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Solution

The fourth proportional to 3,640.24, 5,023.74 and 3,429.64 is: 4,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.24 : 5,023.74 = 3,429.64 : x
  2. Step 2: Convert to fraction form
    3,640.24/5,023.74 = 3,429.64/x
  3. Step 3: Cross multiply
    3,640.24x = 5,023.74 × 3,429.64
  4. Step 4: Simplify right side
    3,640.24x = 17,229,619.65
  5. Step 5: Solve for x
    x = 17,229,619.65/3,640.24
  6. Step 6: Final answer
    x = 4,733.10

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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.