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Finding the Fourth Proportional to 3,717.78, 5,571.78 and 2,075.10

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Solution

The fourth proportional to 3,717.78, 5,571.78 and 2,075.10 is: 3,109.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.78 : 5,571.78 = 2,075.10 : x
  2. Step 2: Convert to fraction form
    3,717.78/5,571.78 = 2,075.10/x
  3. Step 3: Cross multiply
    3,717.78x = 5,571.78 × 2,075.10
  4. Step 4: Simplify right side
    3,717.78x = 11,562,000.68
  5. Step 5: Solve for x
    x = 11,562,000.68/3,717.78
  6. Step 6: Final answer
    x = 3,109.92

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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.