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Finding the Fourth Proportional to 7,179.24, 10,768.71 and 1,914.30

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Solution

The fourth proportional to 7,179.24, 10,768.71 and 1,914.30 is: 2,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.24 : 10,768.71 = 1,914.30 : x
  2. Step 2: Convert to fraction form
    7,179.24/10,768.71 = 1,914.30/x
  3. Step 3: Cross multiply
    7,179.24x = 10,768.71 × 1,914.30
  4. Step 4: Simplify right side
    7,179.24x = 20,614,541.55
  5. Step 5: Solve for x
    x = 20,614,541.55/7,179.24
  6. Step 6: Final answer
    x = 2,871.41

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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.