Home / 4,611-6,919.34-2,421.30

Finding the Fourth Proportional to 4,611, 6,919.34 and 2,421.30

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Solution

The fourth proportional to 4,611, 6,919.34 and 2,421.30 is: 3,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611 : 6,919.34 = 2,421.30 : x
  2. Step 2: Convert to fraction form
    4,611/6,919.34 = 2,421.30/x
  3. Step 3: Cross multiply
    4,611x = 6,919.34 × 2,421.30
  4. Step 4: Simplify right side
    4,611x = 16,753,785.84
  5. Step 5: Solve for x
    x = 16,753,785.84/4,611
  6. Step 6: Final answer
    x = 3,633.44

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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.