Home / 3,403.97-4,697.36-1,911.95

Finding the Fourth Proportional to 3,403.97, 4,697.36 and 1,911.95

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Solution

The fourth proportional to 3,403.97, 4,697.36 and 1,911.95 is: 2,638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.97 : 4,697.36 = 1,911.95 : x
  2. Step 2: Convert to fraction form
    3,403.97/4,697.36 = 1,911.95/x
  3. Step 3: Cross multiply
    3,403.97x = 4,697.36 × 1,911.95
  4. Step 4: Simplify right side
    3,403.97x = 8,981,117.45
  5. Step 5: Solve for x
    x = 8,981,117.45/3,403.97
  6. Step 6: Final answer
    x = 2,638.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.