Home / 1,244.79-1,867.14-513.54

Finding the Fourth Proportional to 1,244.79, 1,867.14 and 513.54

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Solution

The fourth proportional to 1,244.79, 1,867.14 and 513.54 is: 770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.79 : 1,867.14 = 513.54 : x
  2. Step 2: Convert to fraction form
    1,244.79/1,867.14 = 513.54/x
  3. Step 3: Cross multiply
    1,244.79x = 1,867.14 × 513.54
  4. Step 4: Simplify right side
    1,244.79x = 958,851.08
  5. Step 5: Solve for x
    x = 958,851.08/1,244.79
  6. Step 6: Final answer
    x = 770.29

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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.