Home / 3,750.37-5,175.12-2,178.79

Finding the Fourth Proportional to 3,750.37, 5,175.12 and 2,178.79

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Solution

The fourth proportional to 3,750.37, 5,175.12 and 2,178.79 is: 3,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.37 : 5,175.12 = 2,178.79 : x
  2. Step 2: Convert to fraction form
    3,750.37/5,175.12 = 2,178.79/x
  3. Step 3: Cross multiply
    3,750.37x = 5,175.12 × 2,178.79
  4. Step 4: Simplify right side
    3,750.37x = 11,275,499.70
  5. Step 5: Solve for x
    x = 11,275,499.70/3,750.37
  6. Step 6: Final answer
    x = 3,006.50

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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.