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Finding the Fourth Proportional to 5,009.57, 7,512.43 and 1,722.05

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Solution

The fourth proportional to 5,009.57, 7,512.43 and 1,722.05 is: 2,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.57 : 7,512.43 = 1,722.05 : x
  2. Step 2: Convert to fraction form
    5,009.57/7,512.43 = 1,722.05/x
  3. Step 3: Cross multiply
    5,009.57x = 7,512.43 × 1,722.05
  4. Step 4: Simplify right side
    5,009.57x = 12,936,780.08
  5. Step 5: Solve for x
    x = 12,936,780.08/5,009.57
  6. Step 6: Final answer
    x = 2,582.41

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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.