Home / 4,260.13-6,390.26-1,628.85

Finding the Fourth Proportional to 4,260.13, 6,390.26 and 1,628.85

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Solution

The fourth proportional to 4,260.13, 6,390.26 and 1,628.85 is: 2,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.13 : 6,390.26 = 1,628.85 : x
  2. Step 2: Convert to fraction form
    4,260.13/6,390.26 = 1,628.85/x
  3. Step 3: Cross multiply
    4,260.13x = 6,390.26 × 1,628.85
  4. Step 4: Simplify right side
    4,260.13x = 10,408,806.09
  5. Step 5: Solve for x
    x = 10,408,806.09/4,260.13
  6. Step 6: Final answer
    x = 2,443.31

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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.