Home / 6,311.80-9,465.72-2,151.08

Finding the Fourth Proportional to 6,311.80, 9,465.72 and 2,151.08

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Solution

The fourth proportional to 6,311.80, 9,465.72 and 2,151.08 is: 3,225.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.80 : 9,465.72 = 2,151.08 : x
  2. Step 2: Convert to fraction form
    6,311.80/9,465.72 = 2,151.08/x
  3. Step 3: Cross multiply
    6,311.80x = 9,465.72 × 2,151.08
  4. Step 4: Simplify right side
    6,311.80x = 20,361,520.98
  5. Step 5: Solve for x
    x = 20,361,520.98/6,311.80
  6. Step 6: Final answer
    x = 3,225.95

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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.