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Finding the Fourth Proportional to 3,339.41, 5,009.13 and 1,860.86

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Solution

The fourth proportional to 3,339.41, 5,009.13 and 1,860.86 is: 2,791.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.41 : 5,009.13 = 1,860.86 : x
  2. Step 2: Convert to fraction form
    3,339.41/5,009.13 = 1,860.86/x
  3. Step 3: Cross multiply
    3,339.41x = 5,009.13 × 1,860.86
  4. Step 4: Simplify right side
    3,339.41x = 9,321,302.17
  5. Step 5: Solve for x
    x = 9,321,302.17/3,339.41
  6. Step 6: Final answer
    x = 2,791.31

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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.