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Finding the Fourth Proportional to 3,974.66, 5,489.54 and 2,483.85

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Solution

The fourth proportional to 3,974.66, 5,489.54 and 2,483.85 is: 3,430.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.66 : 5,489.54 = 2,483.85 : x
  2. Step 2: Convert to fraction form
    3,974.66/5,489.54 = 2,483.85/x
  3. Step 3: Cross multiply
    3,974.66x = 5,489.54 × 2,483.85
  4. Step 4: Simplify right side
    3,974.66x = 13,635,193.93
  5. Step 5: Solve for x
    x = 13,635,193.93/3,974.66
  6. Step 6: Final answer
    x = 3,430.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.