Home / 1,418.64-2,128.16-596.40

Finding the Fourth Proportional to 1,418.64, 2,128.16 and 596.40

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Solution

The fourth proportional to 1,418.64, 2,128.16 and 596.40 is: 894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.64 : 2,128.16 = 596.40 : x
  2. Step 2: Convert to fraction form
    1,418.64/2,128.16 = 596.40/x
  3. Step 3: Cross multiply
    1,418.64x = 2,128.16 × 596.40
  4. Step 4: Simplify right side
    1,418.64x = 1,269,234.62
  5. Step 5: Solve for x
    x = 1,269,234.62/1,418.64
  6. Step 6: Final answer
    x = 894.68

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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.