Home / 4,309.43-6,464.78-2,118.30

Finding the Fourth Proportional to 4,309.43, 6,464.78 and 2,118.30

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Solution

The fourth proportional to 4,309.43, 6,464.78 and 2,118.30 is: 3,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.43 : 6,464.78 = 2,118.30 : x
  2. Step 2: Convert to fraction form
    4,309.43/6,464.78 = 2,118.30/x
  3. Step 3: Cross multiply
    4,309.43x = 6,464.78 × 2,118.30
  4. Step 4: Simplify right side
    4,309.43x = 13,694,332.88
  5. Step 5: Solve for x
    x = 13,694,332.88/4,309.43
  6. Step 6: Final answer
    x = 3,177.76

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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.