Home / 1,613.45-2,418.28-745.94

Finding the Fourth Proportional to 1,613.45, 2,418.28 and 745.94

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Solution

The fourth proportional to 1,613.45, 2,418.28 and 745.94 is: 1,118.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.45 : 2,418.28 = 745.94 : x
  2. Step 2: Convert to fraction form
    1,613.45/2,418.28 = 745.94/x
  3. Step 3: Cross multiply
    1,613.45x = 2,418.28 × 745.94
  4. Step 4: Simplify right side
    1,613.45x = 1,803,891.78
  5. Step 5: Solve for x
    x = 1,803,891.78/1,613.45
  6. Step 6: Final answer
    x = 1,118.03

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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.