Home / 4,231.68-6,348.31-1,309.30

Finding the Fourth Proportional to 4,231.68, 6,348.31 and 1,309.30

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Solution

The fourth proportional to 4,231.68, 6,348.31 and 1,309.30 is: 1,964.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231.68 : 6,348.31 = 1,309.30 : x
  2. Step 2: Convert to fraction form
    4,231.68/6,348.31 = 1,309.30/x
  3. Step 3: Cross multiply
    4,231.68x = 6,348.31 × 1,309.30
  4. Step 4: Simplify right side
    4,231.68x = 8,311,823.14
  5. Step 5: Solve for x
    x = 8,311,823.14/4,231.68
  6. Step 6: Final answer
    x = 1,964.19

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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.