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Finding the Fourth Proportional to 7,706.95, 11,559.83 and 2,160.00

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Solution

The fourth proportional to 7,706.95, 11,559.83 and 2,160.00 is: 3,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,706.95 : 11,559.83 = 2,160.00 : x
  2. Step 2: Convert to fraction form
    7,706.95/11,559.83 = 2,160.00/x
  3. Step 3: Cross multiply
    7,706.95x = 11,559.83 × 2,160.00
  4. Step 4: Simplify right side
    7,706.95x = 24,969,287.47
  5. Step 5: Solve for x
    x = 24,969,287.47/7,706.95
  6. Step 6: Final answer
    x = 3,239.84

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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.