Home / 4,190.79-6,289.23-3,378.87

Finding the Fourth Proportional to 4,190.79, 6,289.23 and 3,378.87

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Solution

The fourth proportional to 4,190.79, 6,289.23 and 3,378.87 is: 5,070.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.79 : 6,289.23 = 3,378.87 : x
  2. Step 2: Convert to fraction form
    4,190.79/6,289.23 = 3,378.87/x
  3. Step 3: Cross multiply
    4,190.79x = 6,289.23 × 3,378.87
  4. Step 4: Simplify right side
    4,190.79x = 21,250,490.57
  5. Step 5: Solve for x
    x = 21,250,490.57/4,190.79
  6. Step 6: Final answer
    x = 5,070.76

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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.