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Finding the Fourth Proportional to 3,889.54, 5,833.62 and 1,256.94

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Solution

The fourth proportional to 3,889.54, 5,833.62 and 1,256.94 is: 1,885.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.54 : 5,833.62 = 1,256.94 : x
  2. Step 2: Convert to fraction form
    3,889.54/5,833.62 = 1,256.94/x
  3. Step 3: Cross multiply
    3,889.54x = 5,833.62 × 1,256.94
  4. Step 4: Simplify right side
    3,889.54x = 7,332,526.73
  5. Step 5: Solve for x
    x = 7,332,526.73/3,889.54
  6. Step 6: Final answer
    x = 1,885.19

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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.