Home / 3,340.50-5,011.17-1,391.64

Finding the Fourth Proportional to 3,340.50, 5,011.17 and 1,391.64

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Solution

The fourth proportional to 3,340.50, 5,011.17 and 1,391.64 is: 2,087.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.50 : 5,011.17 = 1,391.64 : x
  2. Step 2: Convert to fraction form
    3,340.50/5,011.17 = 1,391.64/x
  3. Step 3: Cross multiply
    3,340.50x = 5,011.17 × 1,391.64
  4. Step 4: Simplify right side
    3,340.50x = 6,973,744.62
  5. Step 5: Solve for x
    x = 6,973,744.62/3,340.50
  6. Step 6: Final answer
    x = 2,087.63

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1.5x scale

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.