Home / 3,665.05-5,054.70-3,000.75

Finding the Fourth Proportional to 3,665.05, 5,054.70 and 3,000.75

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Solution

The fourth proportional to 3,665.05, 5,054.70 and 3,000.75 is: 4,138.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,665.05 : 5,054.70 = 3,000.75 : x
  2. Step 2: Convert to fraction form
    3,665.05/5,054.70 = 3,000.75/x
  3. Step 3: Cross multiply
    3,665.05x = 5,054.70 × 3,000.75
  4. Step 4: Simplify right side
    3,665.05x = 15,167,883.32
  5. Step 5: Solve for x
    x = 15,167,883.32/3,665.05
  6. Step 6: Final answer
    x = 4,138.52

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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.