Home / 3,287.85-4,536.83-1,871.72

Finding the Fourth Proportional to 3,287.85, 4,536.83 and 1,871.72

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Solution

The fourth proportional to 3,287.85, 4,536.83 and 1,871.72 is: 2,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.85 : 4,536.83 = 1,871.72 : x
  2. Step 2: Convert to fraction form
    3,287.85/4,536.83 = 1,871.72/x
  3. Step 3: Cross multiply
    3,287.85x = 4,536.83 × 1,871.72
  4. Step 4: Simplify right side
    3,287.85x = 8,491,666.09
  5. Step 5: Solve for x
    x = 8,491,666.09/3,287.85
  6. Step 6: Final answer
    x = 2,582.74

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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.