Home / 4,231.80-6,344.28-1,921.68

Finding the Fourth Proportional to 4,231.80, 6,344.28 and 1,921.68

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Solution

The fourth proportional to 4,231.80, 6,344.28 and 1,921.68 is: 2,880.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231.80 : 6,344.28 = 1,921.68 : x
  2. Step 2: Convert to fraction form
    4,231.80/6,344.28 = 1,921.68/x
  3. Step 3: Cross multiply
    4,231.80x = 6,344.28 × 1,921.68
  4. Step 4: Simplify right side
    4,231.80x = 12,191,675.99
  5. Step 5: Solve for x
    x = 12,191,675.99/4,231.80
  6. Step 6: Final answer
    x = 2,880.97

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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.