Home / 2,513.30-3,771.09-1,052.78

Finding the Fourth Proportional to 2,513.30, 3,771.09 and 1,052.78

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Solution

The fourth proportional to 2,513.30, 3,771.09 and 1,052.78 is: 1,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,513.30 : 3,771.09 = 1,052.78 : x
  2. Step 2: Convert to fraction form
    2,513.30/3,771.09 = 1,052.78/x
  3. Step 3: Cross multiply
    2,513.30x = 3,771.09 × 1,052.78
  4. Step 4: Simplify right side
    2,513.30x = 3,970,128.13
  5. Step 5: Solve for x
    x = 3,970,128.13/2,513.30
  6. Step 6: Final answer
    x = 1,579.65

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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.