Home / 5,309.67-7,961.78-2,385.47

Finding the Fourth Proportional to 5,309.67, 7,961.78 and 2,385.47

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Solution

The fourth proportional to 5,309.67, 7,961.78 and 2,385.47 is: 3,576.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.67 : 7,961.78 = 2,385.47 : x
  2. Step 2: Convert to fraction form
    5,309.67/7,961.78 = 2,385.47/x
  3. Step 3: Cross multiply
    5,309.67x = 7,961.78 × 2,385.47
  4. Step 4: Simplify right side
    5,309.67x = 18,992,535.60
  5. Step 5: Solve for x
    x = 18,992,535.60/5,309.67
  6. Step 6: Final answer
    x = 3,576.97

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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.