Home / 4,896.05-6,754.90-3,128.69

Finding the Fourth Proportional to 4,896.05, 6,754.90 and 3,128.69

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Solution

The fourth proportional to 4,896.05, 6,754.90 and 3,128.69 is: 4,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,896.05 : 6,754.90 = 3,128.69 : x
  2. Step 2: Convert to fraction form
    4,896.05/6,754.90 = 3,128.69/x
  3. Step 3: Cross multiply
    4,896.05x = 6,754.90 × 3,128.69
  4. Step 4: Simplify right side
    4,896.05x = 21,133,988.08
  5. Step 5: Solve for x
    x = 21,133,988.08/4,896.05
  6. Step 6: Final answer
    x = 4,316.54

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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.