Home / 5,629.76-8,443.34-1,680.66

Finding the Fourth Proportional to 5,629.76, 8,443.34 and 1,680.66

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Solution

The fourth proportional to 5,629.76, 8,443.34 and 1,680.66 is: 2,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.76 : 8,443.34 = 1,680.66 : x
  2. Step 2: Convert to fraction form
    5,629.76/8,443.34 = 1,680.66/x
  3. Step 3: Cross multiply
    5,629.76x = 8,443.34 × 1,680.66
  4. Step 4: Simplify right side
    5,629.76x = 14,190,375.40
  5. Step 5: Solve for x
    x = 14,190,375.40/5,629.76
  6. Step 6: Final answer
    x = 2,520.60

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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.