Home / 2,850.78-3,931.60-2,010

Finding the Fourth Proportional to 2,850.78, 3,931.60 and 2,010

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Solution

The fourth proportional to 2,850.78, 3,931.60 and 2,010 is: 2,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.78 : 3,931.60 = 2,010 : x
  2. Step 2: Convert to fraction form
    2,850.78/3,931.60 = 2,010/x
  3. Step 3: Cross multiply
    2,850.78x = 3,931.60 × 2,010
  4. Step 4: Simplify right side
    2,850.78x = 7,902,516
  5. Step 5: Solve for x
    x = 7,902,516/2,850.78
  6. Step 6: Final answer
    x = 2,772.05

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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.