Home / 3,155.04-4,354.32-2,209.92

Finding the Fourth Proportional to 3,155.04, 4,354.32 and 2,209.92

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Solution

The fourth proportional to 3,155.04, 4,354.32 and 2,209.92 is: 3,049.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.04 : 4,354.32 = 2,209.92 : x
  2. Step 2: Convert to fraction form
    3,155.04/4,354.32 = 2,209.92/x
  3. Step 3: Cross multiply
    3,155.04x = 4,354.32 × 2,209.92
  4. Step 4: Simplify right side
    3,155.04x = 9,622,698.85
  5. Step 5: Solve for x
    x = 9,622,698.85/3,155.04
  6. Step 6: Final answer
    x = 3,049.95

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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.