Home / 5,191.98-7,786.11-1,904.34

Finding the Fourth Proportional to 5,191.98, 7,786.11 and 1,904.34

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Solution

The fourth proportional to 5,191.98, 7,786.11 and 1,904.34 is: 2,855.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.98 : 7,786.11 = 1,904.34 : x
  2. Step 2: Convert to fraction form
    5,191.98/7,786.11 = 1,904.34/x
  3. Step 3: Cross multiply
    5,191.98x = 7,786.11 × 1,904.34
  4. Step 4: Simplify right side
    5,191.98x = 14,827,400.72
  5. Step 5: Solve for x
    x = 14,827,400.72/5,191.98
  6. Step 6: Final answer
    x = 2,855.83

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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.