Home / 3,850.78-5,775.57-1,253.70

Finding the Fourth Proportional to 3,850.78, 5,775.57 and 1,253.70

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Solution

The fourth proportional to 3,850.78, 5,775.57 and 1,253.70 is: 1,880.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.78 : 5,775.57 = 1,253.70 : x
  2. Step 2: Convert to fraction form
    3,850.78/5,775.57 = 1,253.70/x
  3. Step 3: Cross multiply
    3,850.78x = 5,775.57 × 1,253.70
  4. Step 4: Simplify right side
    3,850.78x = 7,240,832.11
  5. Step 5: Solve for x
    x = 7,240,832.11/3,850.78
  6. Step 6: Final answer
    x = 1,880.35

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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.