Home / 3,418.64-5,128.73-1,046.94

Finding the Fourth Proportional to 3,418.64, 5,128.73 and 1,046.94

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Solution

The fourth proportional to 3,418.64, 5,128.73 and 1,046.94 is: 1,570.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.64 : 5,128.73 = 1,046.94 : x
  2. Step 2: Convert to fraction form
    3,418.64/5,128.73 = 1,046.94/x
  3. Step 3: Cross multiply
    3,418.64x = 5,128.73 × 1,046.94
  4. Step 4: Simplify right side
    3,418.64x = 5,369,472.59
  5. Step 5: Solve for x
    x = 5,369,472.59/3,418.64
  6. Step 6: Final answer
    x = 1,570.65

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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.