Home / 3,672.40-5,068.44-2,786.72

Finding the Fourth Proportional to 3,672.40, 5,068.44 and 2,786.72

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Solution

The fourth proportional to 3,672.40, 5,068.44 and 2,786.72 is: 3,846.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.40 : 5,068.44 = 2,786.72 : x
  2. Step 2: Convert to fraction form
    3,672.40/5,068.44 = 2,786.72/x
  3. Step 3: Cross multiply
    3,672.40x = 5,068.44 × 2,786.72
  4. Step 4: Simplify right side
    3,672.40x = 14,124,323.12
  5. Step 5: Solve for x
    x = 14,124,323.12/3,672.40
  6. Step 6: Final answer
    x = 3,846.07

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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.