Home / 4,680-6,463.89-3,105.36

Finding the Fourth Proportional to 4,680, 6,463.89 and 3,105.36

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Solution

The fourth proportional to 4,680, 6,463.89 and 3,105.36 is: 4,289.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680 : 6,463.89 = 3,105.36 : x
  2. Step 2: Convert to fraction form
    4,680/6,463.89 = 3,105.36/x
  3. Step 3: Cross multiply
    4,680x = 6,463.89 × 3,105.36
  4. Step 4: Simplify right side
    4,680x = 20,072,705.45
  5. Step 5: Solve for x
    x = 20,072,705.45/4,680
  6. Step 6: Final answer
    x = 4,289.04

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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.