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Finding the Fourth Proportional to 5,293.28, 7,939.86 and 1,830.48

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Solution

The fourth proportional to 5,293.28, 7,939.86 and 1,830.48 is: 2,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,293.28 : 7,939.86 = 1,830.48 : x
  2. Step 2: Convert to fraction form
    5,293.28/7,939.86 = 1,830.48/x
  3. Step 3: Cross multiply
    5,293.28x = 7,939.86 × 1,830.48
  4. Step 4: Simplify right side
    5,293.28x = 14,533,754.93
  5. Step 5: Solve for x
    x = 14,533,754.93/5,293.28
  6. Step 6: Final answer
    x = 2,745.70

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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.