Home / 7,695.45-11,541.60-2,147.40

Finding the Fourth Proportional to 7,695.45, 11,541.60 and 2,147.40

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Solution

The fourth proportional to 7,695.45, 11,541.60 and 2,147.40 is: 3,220.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,695.45 : 11,541.60 = 2,147.40 : x
  2. Step 2: Convert to fraction form
    7,695.45/11,541.60 = 2,147.40/x
  3. Step 3: Cross multiply
    7,695.45x = 11,541.60 × 2,147.40
  4. Step 4: Simplify right side
    7,695.45x = 24,784,431.84
  5. Step 5: Solve for x
    x = 24,784,431.84/7,695.45
  6. Step 6: Final answer
    x = 3,220.66

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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.