Home / 5,680.75-8,520.57-1,784.47

Finding the Fourth Proportional to 5,680.75, 8,520.57 and 1,784.47

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Solution

The fourth proportional to 5,680.75, 8,520.57 and 1,784.47 is: 2,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.75 : 8,520.57 = 1,784.47 : x
  2. Step 2: Convert to fraction form
    5,680.75/8,520.57 = 1,784.47/x
  3. Step 3: Cross multiply
    5,680.75x = 8,520.57 × 1,784.47
  4. Step 4: Simplify right side
    5,680.75x = 15,204,701.55
  5. Step 5: Solve for x
    x = 15,204,701.55/5,680.75
  6. Step 6: Final answer
    x = 2,676.53

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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.