Home / 6,311.45-8,709.84-3,660.44

Finding the Fourth Proportional to 6,311.45, 8,709.84 and 3,660.44

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Solution

The fourth proportional to 6,311.45, 8,709.84 and 3,660.44 is: 5,051.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.45 : 8,709.84 = 3,660.44 : x
  2. Step 2: Convert to fraction form
    6,311.45/8,709.84 = 3,660.44/x
  3. Step 3: Cross multiply
    6,311.45x = 8,709.84 × 3,660.44
  4. Step 4: Simplify right side
    6,311.45x = 31,881,803.18
  5. Step 5: Solve for x
    x = 31,881,803.18/6,311.45
  6. Step 6: Final answer
    x = 5,051.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.