Home / 3,272.86-4,516.56-1,780.78

Finding the Fourth Proportional to 3,272.86, 4,516.56 and 1,780.78

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Solution

The fourth proportional to 3,272.86, 4,516.56 and 1,780.78 is: 2,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.86 : 4,516.56 = 1,780.78 : x
  2. Step 2: Convert to fraction form
    3,272.86/4,516.56 = 1,780.78/x
  3. Step 3: Cross multiply
    3,272.86x = 4,516.56 × 1,780.78
  4. Step 4: Simplify right side
    3,272.86x = 8,042,999.72
  5. Step 5: Solve for x
    x = 8,042,999.72/3,272.86
  6. Step 6: Final answer
    x = 2,457.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.