Home / 5,629.34-8,443.42-1,680.64

Finding the Fourth Proportional to 5,629.34, 8,443.42 and 1,680.64

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Solution

The fourth proportional to 5,629.34, 8,443.42 and 1,680.64 is: 2,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.34 : 8,443.42 = 1,680.64 : x
  2. Step 2: Convert to fraction form
    5,629.34/8,443.42 = 1,680.64/x
  3. Step 3: Cross multiply
    5,629.34x = 8,443.42 × 1,680.64
  4. Step 4: Simplify right side
    5,629.34x = 14,190,349.39
  5. Step 5: Solve for x
    x = 14,190,349.39/5,629.34
  6. Step 6: Final answer
    x = 2,520.78

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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.