Home / 2,855.04-3,937.32-2,191.92

Finding the Fourth Proportional to 2,855.04, 3,937.32 and 2,191.92

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Solution

The fourth proportional to 2,855.04, 3,937.32 and 2,191.92 is: 3,022.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.04 : 3,937.32 = 2,191.92 : x
  2. Step 2: Convert to fraction form
    2,855.04/3,937.32 = 2,191.92/x
  3. Step 3: Cross multiply
    2,855.04x = 3,937.32 × 2,191.92
  4. Step 4: Simplify right side
    2,855.04x = 8,630,290.45
  5. Step 5: Solve for x
    x = 8,630,290.45/2,855.04
  6. Step 6: Final answer
    x = 3,022.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.