Home / 4,120.26-6,178.50-1,521.38

Finding the Fourth Proportional to 4,120.26, 6,178.50 and 1,521.38

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Solution

The fourth proportional to 4,120.26, 6,178.50 and 1,521.38 is: 2,281.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.26 : 6,178.50 = 1,521.38 : x
  2. Step 2: Convert to fraction form
    4,120.26/6,178.50 = 1,521.38/x
  3. Step 3: Cross multiply
    4,120.26x = 6,178.50 × 1,521.38
  4. Step 4: Simplify right side
    4,120.26x = 9,399,815.44
  5. Step 5: Solve for x
    x = 9,399,815.44/4,120.26
  6. Step 6: Final answer
    x = 2,281.36

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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.