Home / 3,840.29-5,760.79-2,975.57

Finding the Fourth Proportional to 3,840.29, 5,760.79 and 2,975.57

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Solution

The fourth proportional to 3,840.29, 5,760.79 and 2,975.57 is: 4,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.29 : 5,760.79 = 2,975.57 : x
  2. Step 2: Convert to fraction form
    3,840.29/5,760.79 = 2,975.57/x
  3. Step 3: Cross multiply
    3,840.29x = 5,760.79 × 2,975.57
  4. Step 4: Simplify right side
    3,840.29x = 17,141,597.66
  5. Step 5: Solve for x
    x = 17,141,597.66/3,840.29
  6. Step 6: Final answer
    x = 4,463.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.