Home / 3,178.71-4,765.37-1,536.44

Finding the Fourth Proportional to 3,178.71, 4,765.37 and 1,536.44

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Solution

The fourth proportional to 3,178.71, 4,765.37 and 1,536.44 is: 2,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.71 : 4,765.37 = 1,536.44 : x
  2. Step 2: Convert to fraction form
    3,178.71/4,765.37 = 1,536.44/x
  3. Step 3: Cross multiply
    3,178.71x = 4,765.37 × 1,536.44
  4. Step 4: Simplify right side
    3,178.71x = 7,321,673.57
  5. Step 5: Solve for x
    x = 7,321,673.57/3,178.71
  6. Step 6: Final answer
    x = 2,303.35

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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.