Home / 1,540.42-2,310.63-1,230.82

Finding the Fourth Proportional to 1,540.42, 2,310.63 and 1,230.82

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Solution

The fourth proportional to 1,540.42, 2,310.63 and 1,230.82 is: 1,846.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.42 : 2,310.63 = 1,230.82 : x
  2. Step 2: Convert to fraction form
    1,540.42/2,310.63 = 1,230.82/x
  3. Step 3: Cross multiply
    1,540.42x = 2,310.63 × 1,230.82
  4. Step 4: Simplify right side
    1,540.42x = 2,843,969.62
  5. Step 5: Solve for x
    x = 2,843,969.62/1,540.42
  6. Step 6: Final answer
    x = 1,846.23

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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.