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Finding the Fourth Proportional to 3,325.76, 4,987.89 and 1,682.67

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Solution

The fourth proportional to 3,325.76, 4,987.89 and 1,682.67 is: 2,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.76 : 4,987.89 = 1,682.67 : x
  2. Step 2: Convert to fraction form
    3,325.76/4,987.89 = 1,682.67/x
  3. Step 3: Cross multiply
    3,325.76x = 4,987.89 × 1,682.67
  4. Step 4: Simplify right side
    3,325.76x = 8,392,972.87
  5. Step 5: Solve for x
    x = 8,392,972.87/3,325.76
  6. Step 6: Final answer
    x = 2,523.63

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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.