Home / 3,191.94-4,777.92-2,215.08

Finding the Fourth Proportional to 3,191.94, 4,777.92 and 2,215.08

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Solution

The fourth proportional to 3,191.94, 4,777.92 and 2,215.08 is: 3,315.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.94 : 4,777.92 = 2,215.08 : x
  2. Step 2: Convert to fraction form
    3,191.94/4,777.92 = 2,215.08/x
  3. Step 3: Cross multiply
    3,191.94x = 4,777.92 × 2,215.08
  4. Step 4: Simplify right side
    3,191.94x = 10,583,475.03
  5. Step 5: Solve for x
    x = 10,583,475.03/3,191.94
  6. Step 6: Final answer
    x = 3,315.69

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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.