Home / 4,674.30-6,440.78-3,179.62

Finding the Fourth Proportional to 4,674.30, 6,440.78 and 3,179.62

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Solution

The fourth proportional to 4,674.30, 6,440.78 and 3,179.62 is: 4,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,674.30 : 6,440.78 = 3,179.62 : x
  2. Step 2: Convert to fraction form
    4,674.30/6,440.78 = 3,179.62/x
  3. Step 3: Cross multiply
    4,674.30x = 6,440.78 × 3,179.62
  4. Step 4: Simplify right side
    4,674.30x = 20,479,232.90
  5. Step 5: Solve for x
    x = 20,479,232.90/4,674.30
  6. Step 6: Final answer
    x = 4,381.24

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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.