Home / 4,425.32-6,640.14-2,782.64

Finding the Fourth Proportional to 4,425.32, 6,640.14 and 2,782.64

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Solution

The fourth proportional to 4,425.32, 6,640.14 and 2,782.64 is: 4,175.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.32 : 6,640.14 = 2,782.64 : x
  2. Step 2: Convert to fraction form
    4,425.32/6,640.14 = 2,782.64/x
  3. Step 3: Cross multiply
    4,425.32x = 6,640.14 × 2,782.64
  4. Step 4: Simplify right side
    4,425.32x = 18,477,085.97
  5. Step 5: Solve for x
    x = 18,477,085.97/4,425.32
  6. Step 6: Final answer
    x = 4,175.32

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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.