Home / 4,311.16-6,468.76-2,118.66

Finding the Fourth Proportional to 4,311.16, 6,468.76 and 2,118.66

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Solution

The fourth proportional to 4,311.16, 6,468.76 and 2,118.66 is: 3,178.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.16 : 6,468.76 = 2,118.66 : x
  2. Step 2: Convert to fraction form
    4,311.16/6,468.76 = 2,118.66/x
  3. Step 3: Cross multiply
    4,311.16x = 6,468.76 × 2,118.66
  4. Step 4: Simplify right side
    4,311.16x = 13,705,103.06
  5. Step 5: Solve for x
    x = 13,705,103.06/4,311.16
  6. Step 6: Final answer
    x = 3,178.98

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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.