Home / 3,889.47-5,833.12-1,292.43

Finding the Fourth Proportional to 3,889.47, 5,833.12 and 1,292.43

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Solution

The fourth proportional to 3,889.47, 5,833.12 and 1,292.43 is: 1,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.47 : 5,833.12 = 1,292.43 : x
  2. Step 2: Convert to fraction form
    3,889.47/5,833.12 = 1,292.43/x
  3. Step 3: Cross multiply
    3,889.47x = 5,833.12 × 1,292.43
  4. Step 4: Simplify right side
    3,889.47x = 7,538,899.28
  5. Step 5: Solve for x
    x = 7,538,899.28/3,889.47
  6. Step 6: Final answer
    x = 1,938.28

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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.