Home / 4,629.70-6,388.96-2,640.88

Finding the Fourth Proportional to 4,629.70, 6,388.96 and 2,640.88

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Solution

The fourth proportional to 4,629.70, 6,388.96 and 2,640.88 is: 3,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,629.70 : 6,388.96 = 2,640.88 : x
  2. Step 2: Convert to fraction form
    4,629.70/6,388.96 = 2,640.88/x
  3. Step 3: Cross multiply
    4,629.70x = 6,388.96 × 2,640.88
  4. Step 4: Simplify right side
    4,629.70x = 16,872,476.68
  5. Step 5: Solve for x
    x = 16,872,476.68/4,629.70
  6. Step 6: Final answer
    x = 3,644.40

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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.