Home / 1,613.45-2,420.99-1,223.33

Finding the Fourth Proportional to 1,613.45, 2,420.99 and 1,223.33

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Solution

The fourth proportional to 1,613.45, 2,420.99 and 1,223.33 is: 1,835.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.45 : 2,420.99 = 1,223.33 : x
  2. Step 2: Convert to fraction form
    1,613.45/2,420.99 = 1,223.33/x
  3. Step 3: Cross multiply
    1,613.45x = 2,420.99 × 1,223.33
  4. Step 4: Simplify right side
    1,613.45x = 2,961,651.48
  5. Step 5: Solve for x
    x = 2,961,651.48/1,613.45
  6. Step 6: Final answer
    x = 1,835.61

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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.