Home / 3,850.08-5,775.52-1,900.40

Finding the Fourth Proportional to 3,850.08, 5,775.52 and 1,900.40

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Solution

The fourth proportional to 3,850.08, 5,775.52 and 1,900.40 is: 2,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.08 : 5,775.52 = 1,900.40 : x
  2. Step 2: Convert to fraction form
    3,850.08/5,775.52 = 1,900.40/x
  3. Step 3: Cross multiply
    3,850.08x = 5,775.52 × 1,900.40
  4. Step 4: Simplify right side
    3,850.08x = 10,975,798.21
  5. Step 5: Solve for x
    x = 10,975,798.21/3,850.08
  6. Step 6: Final answer
    x = 2,850.80

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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.