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Finding the Fourth Proportional to 5,168.79, 7,750.49 and 2,697.57

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Solution

The fourth proportional to 5,168.79, 7,750.49 and 2,697.57 is: 4,044.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.79 : 7,750.49 = 2,697.57 : x
  2. Step 2: Convert to fraction form
    5,168.79/7,750.49 = 2,697.57/x
  3. Step 3: Cross multiply
    5,168.79x = 7,750.49 × 2,697.57
  4. Step 4: Simplify right side
    5,168.79x = 20,907,475.82
  5. Step 5: Solve for x
    x = 20,907,475.82/5,168.79
  6. Step 6: Final answer
    x = 4,044.95

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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.