Home / 7,450.80-11,177.88-2,520.12

Finding the Fourth Proportional to 7,450.80, 11,177.88 and 2,520.12

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Solution

The fourth proportional to 7,450.80, 11,177.88 and 2,520.12 is: 3,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,450.80 : 11,177.88 = 2,520.12 : x
  2. Step 2: Convert to fraction form
    7,450.80/11,177.88 = 2,520.12/x
  3. Step 3: Cross multiply
    7,450.80x = 11,177.88 × 2,520.12
  4. Step 4: Simplify right side
    7,450.80x = 28,169,598.95
  5. Step 5: Solve for x
    x = 28,169,598.95/7,450.80
  6. Step 6: Final answer
    x = 3,780.75

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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.