Home / 5,048.32-7,566.88-2,128.64

Finding the Fourth Proportional to 5,048.32, 7,566.88 and 2,128.64

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Solution

The fourth proportional to 5,048.32, 7,566.88 and 2,128.64 is: 3,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,048.32 : 7,566.88 = 2,128.64 : x
  2. Step 2: Convert to fraction form
    5,048.32/7,566.88 = 2,128.64/x
  3. Step 3: Cross multiply
    5,048.32x = 7,566.88 × 2,128.64
  4. Step 4: Simplify right side
    5,048.32x = 16,107,163.44
  5. Step 5: Solve for x
    x = 16,107,163.44/5,048.32
  6. Step 6: Final answer
    x = 3,190.60

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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.