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Finding the Fourth Proportional to 3,888.43, 5,833.49 and 1,256.09

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Solution

The fourth proportional to 3,888.43, 5,833.49 and 1,256.09 is: 1,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.43 : 5,833.49 = 1,256.09 : x
  2. Step 2: Convert to fraction form
    3,888.43/5,833.49 = 1,256.09/x
  3. Step 3: Cross multiply
    3,888.43x = 5,833.49 × 1,256.09
  4. Step 4: Simplify right side
    3,888.43x = 7,327,353.01
  5. Step 5: Solve for x
    x = 7,327,353.01/3,888.43
  6. Step 6: Final answer
    x = 1,884.40

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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.