Home / 5,191.12-7,782.33-2,267.20

Finding the Fourth Proportional to 5,191.12, 7,782.33 and 2,267.20

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Solution

The fourth proportional to 5,191.12, 7,782.33 and 2,267.20 is: 3,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.12 : 7,782.33 = 2,267.20 : x
  2. Step 2: Convert to fraction form
    5,191.12/7,782.33 = 2,267.20/x
  3. Step 3: Cross multiply
    5,191.12x = 7,782.33 × 2,267.20
  4. Step 4: Simplify right side
    5,191.12x = 17,644,098.58
  5. Step 5: Solve for x
    x = 17,644,098.58/5,191.12
  6. Step 6: Final answer
    x = 3,398.90

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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.