Home / 3,378.88-5,042.69-3,291.40

Finding the Fourth Proportional to 3,378.88, 5,042.69 and 3,291.40

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Solution

The fourth proportional to 3,378.88, 5,042.69 and 3,291.40 is: 4,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.88 : 5,042.69 = 3,291.40 : x
  2. Step 2: Convert to fraction form
    3,378.88/5,042.69 = 3,291.40/x
  3. Step 3: Cross multiply
    3,378.88x = 5,042.69 × 3,291.40
  4. Step 4: Simplify right side
    3,378.88x = 16,597,509.87
  5. Step 5: Solve for x
    x = 16,597,509.87/3,378.88
  6. Step 6: Final answer
    x = 4,912.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.