Home / 3,750.69-5,180.13-2,921.37

Finding the Fourth Proportional to 3,750.69, 5,180.13 and 2,921.37

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Solution

The fourth proportional to 3,750.69, 5,180.13 and 2,921.37 is: 4,034.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.69 : 5,180.13 = 2,921.37 : x
  2. Step 2: Convert to fraction form
    3,750.69/5,180.13 = 2,921.37/x
  3. Step 3: Cross multiply
    3,750.69x = 5,180.13 × 2,921.37
  4. Step 4: Simplify right side
    3,750.69x = 15,133,076.38
  5. Step 5: Solve for x
    x = 15,133,076.38/3,750.69
  6. Step 6: Final answer
    x = 4,034.74

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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.