Home / 1,244.42-1,865.22-513.11

Finding the Fourth Proportional to 1,244.42, 1,865.22 and 513.11

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Solution

The fourth proportional to 1,244.42, 1,865.22 and 513.11 is: 769.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.42 : 1,865.22 = 513.11 : x
  2. Step 2: Convert to fraction form
    1,244.42/1,865.22 = 513.11/x
  3. Step 3: Cross multiply
    1,244.42x = 1,865.22 × 513.11
  4. Step 4: Simplify right side
    1,244.42x = 957,051.78
  5. Step 5: Solve for x
    x = 957,051.78/1,244.42
  6. Step 6: Final answer
    x = 769.07

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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.