Home / 4,174.05-5,760.47-2,405.78

Finding the Fourth Proportional to 4,174.05, 5,760.47 and 2,405.78

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Solution

The fourth proportional to 4,174.05, 5,760.47 and 2,405.78 is: 3,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,174.05 : 5,760.47 = 2,405.78 : x
  2. Step 2: Convert to fraction form
    4,174.05/5,760.47 = 2,405.78/x
  3. Step 3: Cross multiply
    4,174.05x = 5,760.47 × 2,405.78
  4. Step 4: Simplify right side
    4,174.05x = 13,858,382.69
  5. Step 5: Solve for x
    x = 13,858,382.69/4,174.05
  6. Step 6: Final answer
    x = 3,320.13

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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.