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Finding the Fourth Proportional to 3,339.02, 5,009.01 and 1,259.79

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Solution

The fourth proportional to 3,339.02, 5,009.01 and 1,259.79 is: 1,889.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.02 : 5,009.01 = 1,259.79 : x
  2. Step 2: Convert to fraction form
    3,339.02/5,009.01 = 1,259.79/x
  3. Step 3: Cross multiply
    3,339.02x = 5,009.01 × 1,259.79
  4. Step 4: Simplify right side
    3,339.02x = 6,310,277.20
  5. Step 5: Solve for x
    x = 6,310,277.20/3,339.02
  6. Step 6: Final answer
    x = 1,889.86

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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.