Home / 7,451.80-11,176.04-2,520.80

Finding the Fourth Proportional to 7,451.80, 11,176.04 and 2,520.80

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Solution

The fourth proportional to 7,451.80, 11,176.04 and 2,520.80 is: 3,780.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.80 : 11,176.04 = 2,520.80 : x
  2. Step 2: Convert to fraction form
    7,451.80/11,176.04 = 2,520.80/x
  3. Step 3: Cross multiply
    7,451.80x = 11,176.04 × 2,520.80
  4. Step 4: Simplify right side
    7,451.80x = 28,172,561.63
  5. Step 5: Solve for x
    x = 28,172,561.63/7,451.80
  6. Step 6: Final answer
    x = 3,780.64

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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.