Home / 3,780.45-5,664.90-2,543.28

Finding the Fourth Proportional to 3,780.45, 5,664.90 and 2,543.28

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Solution

The fourth proportional to 3,780.45, 5,664.90 and 2,543.28 is: 3,811.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.45 : 5,664.90 = 2,543.28 : x
  2. Step 2: Convert to fraction form
    3,780.45/5,664.90 = 2,543.28/x
  3. Step 3: Cross multiply
    3,780.45x = 5,664.90 × 2,543.28
  4. Step 4: Simplify right side
    3,780.45x = 14,407,426.87
  5. Step 5: Solve for x
    x = 14,407,426.87/3,780.45
  6. Step 6: Final answer
    x = 3,811.03

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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.