Home / 7,707.12-11,561.88-2,511.78

Finding the Fourth Proportional to 7,707.12, 11,561.88 and 2,511.78

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Solution

The fourth proportional to 7,707.12, 11,561.88 and 2,511.78 is: 3,768.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.12 : 11,561.88 = 2,511.78 : x
  2. Step 2: Convert to fraction form
    7,707.12/11,561.88 = 2,511.78/x
  3. Step 3: Cross multiply
    7,707.12x = 11,561.88 × 2,511.78
  4. Step 4: Simplify right side
    7,707.12x = 29,040,898.95
  5. Step 5: Solve for x
    x = 29,040,898.95/7,707.12
  6. Step 6: Final answer
    x = 3,768.06

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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.