Home / 7,687.20-11,530.35-2,422.35

Finding the Fourth Proportional to 7,687.20, 11,530.35 and 2,422.35

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Solution

The fourth proportional to 7,687.20, 11,530.35 and 2,422.35 is: 3,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.20 : 11,530.35 = 2,422.35 : x
  2. Step 2: Convert to fraction form
    7,687.20/11,530.35 = 2,422.35/x
  3. Step 3: Cross multiply
    7,687.20x = 11,530.35 × 2,422.35
  4. Step 4: Simplify right side
    7,687.20x = 27,930,543.32
  5. Step 5: Solve for x
    x = 27,930,543.32/7,687.20
  6. Step 6: Final answer
    x = 3,633.38

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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.