Home / 7,385.82-11,080.55-2,191.69

Finding the Fourth Proportional to 7,385.82, 11,080.55 and 2,191.69

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Solution

The fourth proportional to 7,385.82, 11,080.55 and 2,191.69 is: 3,288.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.82 : 11,080.55 = 2,191.69 : x
  2. Step 2: Convert to fraction form
    7,385.82/11,080.55 = 2,191.69/x
  3. Step 3: Cross multiply
    7,385.82x = 11,080.55 × 2,191.69
  4. Step 4: Simplify right side
    7,385.82x = 24,285,130.63
  5. Step 5: Solve for x
    x = 24,285,130.63/7,385.82
  6. Step 6: Final answer
    x = 3,288.08

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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.