Home / 5,191.98-7,790.85-3,808.14

Finding the Fourth Proportional to 5,191.98, 7,790.85 and 3,808.14

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Solution

The fourth proportional to 5,191.98, 7,790.85 and 3,808.14 is: 5,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.98 : 7,790.85 = 3,808.14 : x
  2. Step 2: Convert to fraction form
    5,191.98/7,790.85 = 3,808.14/x
  3. Step 3: Cross multiply
    5,191.98x = 7,790.85 × 3,808.14
  4. Step 4: Simplify right side
    5,191.98x = 29,668,647.52
  5. Step 5: Solve for x
    x = 29,668,647.52/5,191.98
  6. Step 6: Final answer
    x = 5,714.32

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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.