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Finding the Fourth Proportional to 3,859.09, 5,788.58 and 937.42

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Solution

The fourth proportional to 3,859.09, 5,788.58 and 937.42 is: 1,406.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.09 : 5,788.58 = 937.42 : x
  2. Step 2: Convert to fraction form
    3,859.09/5,788.58 = 937.42/x
  3. Step 3: Cross multiply
    3,859.09x = 5,788.58 × 937.42
  4. Step 4: Simplify right side
    3,859.09x = 5,426,301.72
  5. Step 5: Solve for x
    x = 5,426,301.72/3,859.09
  6. Step 6: Final answer
    x = 1,406.11

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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.