Home / 5,123.20-7,676.70-4,426.60

Finding the Fourth Proportional to 5,123.20, 7,676.70 and 4,426.60

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Solution

The fourth proportional to 5,123.20, 7,676.70 and 4,426.60 is: 6,632.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.20 : 7,676.70 = 4,426.60 : x
  2. Step 2: Convert to fraction form
    5,123.20/7,676.70 = 4,426.60/x
  3. Step 3: Cross multiply
    5,123.20x = 7,676.70 × 4,426.60
  4. Step 4: Simplify right side
    5,123.20x = 33,981,680.22
  5. Step 5: Solve for x
    x = 33,981,680.22/5,123.20
  6. Step 6: Final answer
    x = 6,632.90

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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.