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Finding the Fourth Proportional to 5,658.48, 8,485.70 and 1,959.73

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Solution

The fourth proportional to 5,658.48, 8,485.70 and 1,959.73 is: 2,938.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,658.48 : 8,485.70 = 1,959.73 : x
  2. Step 2: Convert to fraction form
    5,658.48/8,485.70 = 1,959.73/x
  3. Step 3: Cross multiply
    5,658.48x = 8,485.70 × 1,959.73
  4. Step 4: Simplify right side
    5,658.48x = 16,629,649.85
  5. Step 5: Solve for x
    x = 16,629,649.85/5,658.48
  6. Step 6: Final answer
    x = 2,938.89

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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.