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Finding the Fourth Proportional to 3,900.07, 5,846.81 and 1,818.97

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Solution

The fourth proportional to 3,900.07, 5,846.81 and 1,818.97 is: 2,726.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.07 : 5,846.81 = 1,818.97 : x
  2. Step 2: Convert to fraction form
    3,900.07/5,846.81 = 1,818.97/x
  3. Step 3: Cross multiply
    3,900.07x = 5,846.81 × 1,818.97
  4. Step 4: Simplify right side
    3,900.07x = 10,635,186.28
  5. Step 5: Solve for x
    x = 10,635,186.28/3,900.07
  6. Step 6: Final answer
    x = 2,726.92

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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.